CN112288052B - Anti-counterfeiting identification method, device and system for concrete test block - Google Patents
Anti-counterfeiting identification method, device and system for concrete test block Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 claims abstract description 23
- 230000001681 protective effect Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 9
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- 238000010276 construction Methods 0.000 description 11
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
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Abstract
The application relates to a concrete test block anti-counterfeiting identification method, device and system, which comprise the following steps: obtaining a plurality of special labels; manufacturing a concrete test block, and manufacturing a marked concrete test block according to the concrete test block and the special labels; obtaining the marking information of the marked concrete test block, and reserving the marking information, wherein the marking information at least comprises the relative positions of a plurality of special labels on the concrete test block; generating a digital password according to the marking information, and generating a cloud two-dimensional code according to the digital password, wherein the digital password is at least used for describing the position characteristics of a plurality of special tags. The method has the characteristic of ensuring the authenticity of the sample in the concrete inspection process.
Description
Technical Field
The application relates to the technical field of concrete quality detection, in particular to a concrete test block anti-counterfeiting identification method, a device and a system thereof.
Background
The concrete test block is used for measuring the compressive strength of concrete, and the concrete compressive strength test molds in China are all cube test molds, and because the 20 cm cube test molds and the test blocks are too heavy, the materials are wasted, and the 15 cm cube test molds and the 15 cm cube test blocks are generally adopted. The normal standard curing of the cubic test block is carried out in 28 days, three days in advance can be carried out, the time cannot exceed 28 days, otherwise, the cubic test block is rebound, and the super-age is calculated. The curing under the same condition is over 600 ℃, and the concrete can be delivered after the site temperature is accumulated and reaches 600 ℃ from the time of tamping the concrete on the same day. The number of days under the same condition cannot be less than 14 days and cannot be more than 90 days.
Witness sampling of concrete test blocks is an important means for engineering quality supervision and construction quality control, plays an important role in construction engineering quality supervision, and is a primary link for guaranteeing fairness, scientificity and authority of construction engineering quality detection work. However, in the actual operation process, the sample is not representative enough, distorted or even falsified due to the working disconnection of the sampling and witness links, and the actual level of the structural entity quality is removed. The representativeness and authenticity of the sample presents a more common problem, resulting in the failure of the data of the inspection report to truly reflect the quality of the structural entity.
Disclosure of Invention
In order to ensure the authenticity of a sample in the concrete inspection process, the application provides a concrete test block anti-counterfeiting identification method, a device and a system thereof.
In a first aspect, the present application provides a method for anti-counterfeit identification of a concrete test block, the method comprising:
obtaining a plurality of special labels;
manufacturing a concrete test block, and manufacturing a marked concrete test block according to the concrete test block and the special labels;
obtaining the marking information of the marked concrete test block, and reserving the marking information, wherein the marking information at least comprises the relative positions of a plurality of special labels on the concrete test block;
generating a digital password according to the marking information, and generating a cloud two-dimensional code according to the digital password, wherein the digital password is at least used for describing the position characteristics of a plurality of special tags.
Adding a special tag in the process of manufacturing the concrete test block, then reserving the position information of the special tag, generating a digital code according to the position information, and describing the position of the special tag by the digital code; when the concrete test block is checked, the concrete test block is verified first, the cloud two-dimensional code is scanned during verification to download the digital password, the digital password is compared with the digital password generated at the actual position on the concrete test block, the authenticity of the concrete sample is verified, and the authenticity of the sample is guaranteed.
Optionally, the special tag uses a special two-dimensional code, and the special two-dimensional code at least comprises information describing the purpose of the concrete test block;
the obtaining the marking information of the marked concrete test block comprises the following steps: and obtaining the image information of the marked concrete test block.
The special two-dimensional code is used, so that the special label can be further utilized, and the authenticity of the sample is further ensured through information contained in the special two-dimensional code.
Optionally, the special two-dimensional code comprises a two-dimensional code label and a two-dimensional code protection sleeve for protecting the two-dimensional code label, one side of the two-dimensional code protection sleeve is provided with a transparent part, the other side of the two-dimensional code protection sleeve is provided with a storage bin for storing the two-dimensional code label and a sealing sheet for isolating the storage bin from the external environment, one side of the two-dimensional code label is provided with the two-dimensional code, which is tightly attached to the transparent part, and the other side of the two-dimensional code label is tightly abutted to the sealing sheet; the opposite side of the two-dimensional code protective sheath relative transparent portion is equipped with the inserted bar of inserting in the concrete test block, and the inserted end of inserted bar is connected with the stopper, stopper part projection is outside the inserted bar.
In order to avoid damage of the special two-dimensional code in the concrete test block curing process, the two-dimensional code label is wrapped by the two-dimensional code protective sleeve; meanwhile, in order to prevent the special two-dimensional code from being removed and attached to another concrete test block which is carefully forged, the special two-dimensional code is inserted into the concrete test block by using the inserting rod, and the special two-dimensional code is difficult to pull out from the concrete test block due to the limitation of the limiting block;
similarly, the concrete test block is not completely fixed when the tag is inserted, so that the two-dimensional code tag slightly sags, the sealing piece can sink into the concrete test block, and the connection strength between the two-dimensional code tag and the concrete test block is further improved.
Optionally, the image information further comprises inclination rotation direction information of the two-dimensional code protective sleeve relative to the concrete test block and three-dimensional position information of the special two-dimensional code.
Through the setting of two-dimensional code protective sheath, the two-dimensional code label no longer is a piece of poster paper, has also had the three-dimensional coordinate of being convenient for discernment, has three-dimensional on inclination to make the cracking degree of difficulty of digital code bigger, more difficult to imitate the concrete test block, can further improve the counterfeit degree of difficulty.
Optionally, the obtaining the image information of the marked concrete test block includes obtaining front view information, top view information, left view information, right view information, bottom view information, and rear view information of the marked concrete test block, and obtaining tilt rotation direction information and three-dimensional position information of the special two-dimensional code tag according to the front view information, the top view information, the left view information, the right view information, the bottom view information, and the rear view information.
Through the arrangement of six views, namely front view information, top view information, left view information, right view information, bottom view information and rear view information, each size information, position information and inclination information of the concrete test block can be accurately obtained through modeling in a three-dimensional coordinate system, so that the description precision of the digital password on the special two-dimensional code is improved, and the complexity of the digital password is further improved.
Optionally, the special tag uses an RFID tag embedded in a concrete test block, and the obtaining the marking information of the marked concrete test block includes: and acquiring three-dimensional coordinate information of the RFID tag relative to the concrete test block according to the signal intensity of the RFID tag.
The RFID tag is an electronic tag, and can emit signals outwards for a long time in a wireless state, after the RFID tag is embedded into the concrete test block, the deeper the embedded RFID tag is, the weaker the corresponding oriented signal is, so that the distance between the RFID tag and each surface of the concrete test block can be known through the strength of the signal in each direction of the concrete test block, the three-dimensional coordinate information of the RFID tag relative to the concrete test block is obtained, and a digital password is generated through the three-dimensional coordinate information.
Optionally, the obtaining the marking information of the marked concrete test block includes: the marking information also comprises location information when the marking information is acquired, wherein the location information is acquired through Beidou positioning or GPS positioning;
the step of retaining the marking information comprises the following steps:
judging whether the location information is preset location information or not, if so, uploading the marking information to a cloud end to finish a reservation file;
if not, the marking information cannot be uploaded to the cloud end, and the reservation cannot be completed.
When the special label is embedded, whether the manufacturing site of the concrete test block is the correct construction site of the constructor needs to be judged through positioning, if the construction site is wrong, the condition that the constructor is falsified or falsified is also possible to exist, at the moment, uploading and retaining are not allowed, subsequent identification cannot be carried out, and the failure is directly judged.
In a second aspect, the present application provides a concrete test block anti-counterfeiting authentication device, the device comprising:
the label module is used for marking the concrete test block and manufacturing marked concrete;
the recording module is used for marking the marked concrete and forming marking information;
the cloud module is used for receiving the marking information and carrying out reservation,
the computing module is used for identifying the marking information, generating a digital password according to the marking information, and generating cloud two-dimensional codes for describing the position characteristics of the special labels according to the digital password.
In a third aspect, the present application provides a concrete test block anti-counterfeiting authentication system, the apparatus comprising:
the label device is used for marking the concrete test block and manufacturing marked concrete;
the recording device is used for marking the marked concrete and forming marking information;
the cloud device is used for receiving the marking information and carrying out reservation,
the computing device is used for identifying the marking information, generating a digital password according to the marking information, and generating cloud two-dimensional codes for describing the position characteristics of the special labels according to the digital password.
In summary, the present application provides a method, apparatus and system for anti-counterfeit identification of concrete test blocks, which includes obtaining a plurality of special tags; manufacturing a concrete test block, and manufacturing a marked concrete test block according to the concrete test block and the special labels; obtaining the marking information of the marked concrete test block, and reserving the marking information, wherein the marking information at least comprises the relative positions of a plurality of special labels on the concrete test block; generating a digital password according to the marking information, and generating a cloud two-dimensional code according to the digital password, wherein the digital password is at least used for describing the position characteristics of a plurality of special tags.
The beneficial effects that this application provided technical scheme reached are: by the arrangement of the special label, the authenticity of the sample in the concrete inspection process is ensured.
Drawings
Fig. 1 is a flow chart of a concrete test block anti-counterfeiting identification method provided in an embodiment of the application.
Fig. 2 is a schematic structural diagram of a special two-dimensional code according to an embodiment of the present application.
Fig. 3 is a structural diagram of a concrete test block anti-counterfeiting identification device provided in an embodiment of the application.
Fig. 4 is a block diagram of a concrete test block anti-counterfeiting identification system according to an embodiment of the present application.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
The present embodiment is merely illustrative of the present application and is not intended to be limiting, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as required, but is protected by patent laws within the scope of the claims of the present application.
Embodiment 1, a concrete test block anti-counterfeiting identification method, as shown in fig. 1, specifically comprises the following steps:
Specifically, the special tag can use a special two-dimensional code or an RFID tag for describing the application information of the concrete test block.
And 102, manufacturing a marked concrete test block.
Specifically, the concrete test block is manufactured according to the concrete test block and the special labels.
Optionally, when the special tag is a special two-dimensional code tag, the special two-dimensional code comprises a two-dimensional code tag and a two-dimensional code protection sleeve for protecting the two-dimensional code tag, one side of the two-dimensional code protection sleeve is provided with a transparent part, the other side of the two-dimensional code protection sleeve is provided with a storage bin for storing the two-dimensional code tag and a sealing sheet for isolating the storage bin from the external environment, one side of the two-dimensional code tag with the two-dimensional code is tightly attached to the transparent part, and the other side of the two-dimensional code tag is tightly abutted to the sealing sheet; the opposite side of the two-dimensional code protective sheath relative to the transparent portion is equipped with the inserted bar of inserting in the concrete test block, and the inserted end of inserted bar is connected with the stopper, and stopper part projection is outside the inserted bar.
Alternatively, when the specialty tag is an RFID tag, the RFID tag is embedded in the concrete test block.
And step 103, obtaining marking information of the marked concrete test block.
Optionally, when the special tag is a special two-dimensional code tag, the marking information is image information, including front view information, top view information, left view information, right view information, bottom view information and back view information of the marked concrete test block, and the oblique rotation direction information and the three-dimensional position information of the special two-dimensional code tag are obtained according to the front view information, the top view information, the left view information, the right view information, the bottom view information and the back view information.
Optionally, when the special tag is an RFID tag, three-dimensional coordinate information of the RFID tag relative to the concrete test block is obtained according to signal strength of the RFID tag.
And 104, reserving the mark information.
Specifically, the marking information further comprises location information when the marking information is acquired, the location information is acquired through Beidou positioning or GPS positioning, whether the location information is preset location information or not is judged, if yes, the marking information is uploaded to a cloud end, and reservation is completed; if not, the marking information cannot be uploaded to the cloud end, and the reservation cannot be completed.
And 105, generating a digital password according to the marking information, and generating a cloud two-dimensional code according to the digital password.
In particular, the numeric code is used to describe at least the location characteristics of a plurality of specialty tags.
In embodiment 2, as shown in fig. 1 and 2, in the anti-counterfeit identification method for a concrete test block, the process of step 101 may be to use a special two-dimensional code as a special tag.
The step 102 may include that the special two-dimensional code includes a two-dimensional code tag, and in order to avoid damage of the special two-dimensional code in the concrete test block curing process, the two-dimensional code tag is wrapped by a two-dimensional code protective sleeve. One side of the two-dimensional code protective sleeve is provided with a transparent part, the other side of the transparent part is provided with a storage bin for storing the two-dimensional code label, a sealing sheet for isolating the storage bin from the external environment, one side of the two-dimensional code label is clung to the transparent part, and the other side of the two-dimensional code label is propped against the sealing sheet.
Meanwhile, in order to prevent the special two-dimensional code from being removed and attached to another concrete test block which is forged carefully, the other side of the two-dimensional code protective sleeve, which is opposite to the transparent part, is provided with an inserting rod which is inserted into the concrete test block. The inserted end of inserted bar is connected with the stopper, and stopper part projection is outside the inserted bar, uses the inserted bar to insert in the concrete test block to through the restriction of stopper, make the special two-dimensional code be difficult to pull out from the concrete test block.
Similarly, the concrete test block is not completely fixed when the tag is inserted, so that the two-dimensional code tag slightly sags, the sealing piece can sink into the concrete test block, and the connection strength between the two-dimensional code tag and the concrete test block is further improved.
The process of step 103 may be that the marking information is image information, including front view information, top view information, left view information, right view information, bottom view information, and back view information of the marked concrete test block, and through the arrangement of the six views including the front view information, the top view information, the left view information, the right view information, the bottom view information, and the back view information, each size information, the position information, and the inclination information of the concrete test block in the three-dimensional coordinate system can be accurately obtained by modeling, so that the description precision of the digital password on describing the special two-dimensional code is improved, and the complexity of the digital password is further improved.
The step 104 may include that the marking information further includes location information when the marking information is acquired, where the location information is acquired through Beidou positioning or GPS positioning, and when the marking information is uploaded, whether the location information is a correct location of normal construction of the construction party is firstly judged, if yes, the marking information is uploaded to the cloud end, and the reservation is completed; if not, the explanation may be that the constructor is falsified, and at this time, the uploading of the reserved file is not allowed, the subsequent recognition cannot be performed, and the direct judgment is failed.
The step 105 may include generating the digital code by describing the three-dimensional relative positions among the plurality of special two-dimensional code labels and the inclination angles of the plurality of special two-dimensional code labels, so as to improve the description precision of the digital code on the position and the relative position of the special two-dimensional code, and further improve the complexity of the digital code.
In embodiment 3, as shown in fig. 1, the process of step 101 may be that the special tag is an RFID tag, and the special tag is purchased from the market and can continuously send out an electronic signal.
The process of step 102 may be to embed an RFID tag into a concrete block during the concrete block manufacturing process.
The step 103 may be that, after the RFID tag is embedded in the concrete test block, the deeper the embedded RFID tag is, the weaker the signal corresponding to the direction is, so that the distance between the RFID tag and each surface of the concrete test block can be known through the strength of the signal in each direction of the concrete test block, and the three-dimensional coordinate information of the RFID tag relative to the concrete test block is obtained.
The step 104 may include that the marking information further includes location information when the marking information is acquired, where the location information is acquired through Beidou positioning or GPS positioning, and when the marking information is uploaded, whether the location information is a correct location of normal construction of the construction party is firstly judged, if yes, the marking information is uploaded to the cloud end, and the reservation is completed; if not, the explanation may be that the constructor is falsified, and at this time, the file is not allowed to be uploaded, and the supervision party is notified of the alarm.
The process of step 105 may be to generate a digital password from three-dimensional coordinate information of a plurality of RFID tags.
Example 4 As shown in FIG. 3, the present application provides a concrete test block anti-counterfeiting authentication device comprising
The tag module 201 is used for marking the concrete test block and manufacturing marked concrete;
a recording module 202 for marking the marked concrete and forming marking information;
the cloud module 203 is configured to receive the marking information and perform a reservation;
the computing module 204 is configured to identify the tag information, generate a digital password according to the tag information, and generate cloud two-dimensional codes for describing the location features of the plurality of special tags according to the digital password.
Example 5 As shown in FIG. 4, the present application provides a concrete coupon anti-counterfeiting authentication system comprising
The labeling device 301 is used for labeling the concrete test block and manufacturing labeled concrete;
a recording device 302 for marking the marked concrete and forming marking information;
the cloud device 303 is configured to receive the marking information and perform a reservation;
the computing device 304 is configured to identify the tag information, generate a digital password according to the tag information, and generate cloud two-dimensional codes for describing the location features of the plurality of special tags according to the digital password.
Example 6, in this application, may also be used to authenticate the rebar against counterfeiting. When anti-counterfeiting authentication is performed on the steel bars, a plurality of two-dimensional codes are firstly stuck to the steel bars to be detected through the 3m adhesive tape, and at least one of the two-dimensional codes is required to be completely and clearly shown and used for showing relevant information of the steel bars when the two-dimensional codes are scanned.
And then photographing and uploading the reinforcing steel bar pasted with the two-dimension code, positioning the uploaded geographic position through Beidou positioning or GPS positioning, uploading the photo to the cloud end if the place belongs to the correct place of normal construction of a constructor, and informing an alarm to a supervision party if the place is wrong.
And then, generating a digital code by means of the distance and the positions among the two-dimensional codes in the photo, generating a secondary two-dimensional code by the digital code at the cloud, scanning the secondary two-dimensional code when supervision is carried out, and comparing the acquired digital code with the secondary code obtained by actually detecting the reinforcing steel bar, thereby judging the authenticity of the reinforcing steel bar.
The invention provides a concrete test block anti-counterfeiting identification method, a device and a system, wherein a plurality of special labels are firstly obtained; then, manufacturing a concrete test block, and manufacturing a marked concrete test block according to the concrete test block and a plurality of special labels; obtaining marking information of a marked concrete test block, and reserving the marking information, wherein the marking information at least comprises the relative positions of a plurality of special labels on the concrete test block; generating a digital password according to the marking information, and generating a cloud two-dimensional code according to the digital password, wherein the digital password is at least used for describing the position characteristics of a plurality of special labels.
When detecting, the construction party often uses the specially-produced qualified concrete test block which is already detected to replace the concrete test block which needs to be detected in the past detection; in the method, a special tag is added in the process of manufacturing the concrete test block, then the position information of the special tag is kept, a digital code is generated according to the position information, and the position of the special tag is described by the digital code; when the concrete test block is checked, the concrete test block is verified first, and the digital passwords are downloaded for comparison by scanning the cloud two-dimensional code during verification, so that the authenticity of the concrete sample is verified, and the authenticity of the sample is ensured.
In conclusion, the concrete sample authenticity can be verified, and the sample authenticity is guaranteed.
All the above optional technical solutions may be combined arbitrarily to form an optional embodiment of the present application, and meanwhile, embodiments of the method, the device, the system and the readable storage medium for identifying anti-counterfeit of a concrete test block provided in the above embodiments belong to the same concept, and detailed implementation processes of the embodiments are detailed in the method embodiments, which are not repeated herein.
Claims (6)
1. The anti-counterfeiting identification method for the concrete test block is characterized by comprising the following steps of:
obtaining a plurality of special labels;
manufacturing a concrete test block, and manufacturing a marked concrete test block according to the concrete test block and the special labels;
obtaining the marking information of the marked concrete test block, and reserving the marking information;
generating a digital password according to the marking information, and generating a cloud two-dimensional code according to the digital password, wherein the digital password is at least used for describing the position characteristics of a plurality of special tags;
the special tag uses an RFID tag embedded in the concrete test block and a special two-dimensional code;
the obtaining the marking information of the marked concrete test block comprises the following steps: acquiring image information of the marked concrete test block and acquiring three-dimensional coordinate information of the RFID tag relative to the concrete test block according to the signal intensity of the RFID tag;
the step of obtaining the image information of the marked concrete test block comprises the steps of obtaining front view information, top view information, left view information, right view information, bottom view information and rear view information of the marked concrete test block, and obtaining the inclination rotation direction information and the three-dimensional position information of the special two-dimensional code label according to the front view information, the top view information, the left view information, the right view information, the bottom view information and the rear view information.
2. The method according to claim 1, characterized in that: the special two-dimensional code at least comprises information describing the application of the concrete test block.
3. The method according to claim 2, characterized in that: the special two-dimensional code comprises a two-dimensional code label and a two-dimensional code protective sleeve for protecting the two-dimensional code label, one side of the two-dimensional code protective sleeve is provided with a transparent part, the other side of the transparent part is provided with a storage bin for storing the two-dimensional code label and a sealing piece for isolating the storage bin from the external environment, one side of the two-dimensional code label is clung to the transparent part, and the other side of the two-dimensional code label is abutted against the sealing piece; the opposite side of the two-dimensional code protective sheath relative transparent portion is equipped with the inserted bar of inserting in the concrete test block, and the inserted end of inserted bar is connected with the stopper, stopper part projection is outside the inserted bar.
4. The method according to claim 1, characterized in that: the obtaining the marking information of the marked concrete test block comprises the following steps: the marking information also comprises location information when the marking information is acquired, wherein the location information is acquired through Beidou positioning or GPS positioning;
the step of retaining the marking information comprises the following steps:
judging whether the location information is preset location information or not, if so, uploading the marking information to a cloud end to finish reservation;
if not, the marking information cannot be uploaded to the cloud end, and the reservation cannot be completed.
5. An anti-counterfeiting identification device for a concrete test block, which is characterized by comprising:
the label module (201) is used for acquiring a plurality of special labels, manufacturing a concrete test block, and manufacturing a marked concrete test block according to the concrete test block and the special labels, wherein the special labels use RFID labels and special two-dimensional codes embedded in the concrete test block;
a recording module (202) for obtaining the marking information of the marked concrete test block, wherein the obtaining the marking information of the marked concrete test block comprises: the method comprises the steps of obtaining image information of a marked concrete test block and obtaining three-dimensional coordinate information of the RFID tag relative to the concrete test block according to signal intensity of the RFID tag, wherein the obtaining of the image information of the marked concrete test block comprises obtaining front view information, top view information, left view information, right view information, bottom view information and rear view information of the marked concrete test block, and obtaining oblique rotation direction information and three-dimensional position information of a special two-dimensional code tag according to the front view information, the top view information, the left view information, the right view information, the bottom view information and the rear view information;
the cloud module (203) is used for reserving the mark information;
the computing module (204) is used for generating a digital password according to the marking information and generating a cloud two-dimensional code according to the digital password, wherein the digital password is at least used for describing the position characteristics of a plurality of special tags.
6. A concrete test block anti-counterfeiting identification system, comprising:
the label device (301) is used for acquiring a plurality of special labels, manufacturing a concrete test block, and manufacturing a marked concrete test block according to the concrete test block and the special labels, wherein the special labels use RFID labels and special two-dimensional codes embedded in the concrete test block;
recording means (302) for obtaining the marking information of the marked concrete block, the obtaining the marking information of the marked concrete block comprising: the method comprises the steps of obtaining image information of a marked concrete test block and obtaining three-dimensional coordinate information of the RFID tag relative to the concrete test block according to signal intensity of the RFID tag, wherein the obtaining of the image information of the marked concrete test block comprises obtaining front view information, top view information, left view information, right view information, bottom view information and rear view information of the marked concrete test block, and obtaining oblique rotation direction information and three-dimensional position information of a special two-dimensional code tag according to the front view information, the top view information, the left view information, the right view information, the bottom view information and the rear view information;
cloud means (303) for retaining the marking information;
the computing device (304) is used for generating a digital password according to the marking information and generating a cloud two-dimensional code according to the digital password, wherein the digital password is at least used for describing the position characteristics of a plurality of special tags.
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| CN114047048B (en) * | 2022-01-12 | 2022-04-08 | 广东南电智控系统有限公司 | Anti-exchange card record analysis processing system of concrete test block |
| CN114924059A (en) * | 2022-04-21 | 2022-08-19 | 珠海新华通软件股份有限公司 | Anti-counterfeiting object and anti-counterfeiting method |
| CN118425158B (en) * | 2024-04-15 | 2025-05-13 | 河南省对外建设有限公司 | Concrete product quality detection method, electronic device and storage medium |
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| CN109118944A (en) * | 2017-06-22 | 2019-01-01 | 杭州沃朴物联科技有限公司 | A kind of antifalsification label based on random bubble |
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| JP2007033238A (en) * | 2005-07-27 | 2007-02-08 | Osaka Lion Concrete Kk | Method for managing and assuring quality of concrete |
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