CN110126394A - A kind of MULTILAYER COMPOSITE medium density fiberboard - Google Patents
A kind of MULTILAYER COMPOSITE medium density fiberboard Download PDFInfo
- Publication number
- CN110126394A CN110126394A CN201910355850.6A CN201910355850A CN110126394A CN 110126394 A CN110126394 A CN 110126394A CN 201910355850 A CN201910355850 A CN 201910355850A CN 110126394 A CN110126394 A CN 110126394A
- Authority
- CN
- China
- Prior art keywords
- medium density
- density fiberboard
- fixed plate
- ontology
- multilayer composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011094 fiberboard Substances 0.000 title claims abstract description 62
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 239000011521 glass Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- -1 smashed Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/02—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board the layer being formed of fibres, chips, or particles, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/42—Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/08—Interconnection of layers by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention discloses a kind of MULTILAYER COMPOSITE medium density fiberboards, including medium density fiberboard ontology, the medium density fiberboard is set inside the body cavity, the inside of the cavity is equipped with Wavy tile contour plate, the wave crest of the Wavy tile contour plate and the inside of cavity closely connect, the two sides of the medium density fiberboard ontology have been respectively fixedly connected with the first fixed plate and the second fixed plate, and the two sides of the strip groove offer sliding slot, and the internal slide of the sliding slot is connected with sliding block.By the way that cavity is arranged inside medium density fiberboard, it is fixedly connected with Wavy tile contour plate in the cavities, support force can be provided for medium density fiberboard upper and lower surface, mitigates this weight of medium density fiberboard, reduces cost of manufacture；The T-type sliding block and T-type sliding slot that match is equipped with by the first fixed plate and the second fixed plate in the two sides of medium density fiberboard ontology medium density fiberboard is fixed together using reinforcing strip, improves the stability of splicing convenient for the splicing between medium density fiberboard.
Description
Technical field
The present invention relates to medium density fiberboard technical field, specially a kind of MULTILAYER COMPOSITE medium density fiberboard.
Background technique
Medium density fiberboard is density board one kind, wherein there are also long fine plates and short fine plate.It is with wood fibre or other plant fiber
Raw material, smashed, fiber separation, it is dry after apply Lauxite or other applicable adhesive, then after hot pressing made of one
Kind artificial board.It due to its function admirable, and is the effective way that wood comprehensive is utilized, rationally utilized, therefore, middle density is fine
Dimension plate is one of product most promising at present, and consistent internal structure, medium density, good stability of the dimension, deflection is small,
Physical and mechanical property is moderate, smooth surface, and machinability is good, can paste on it slicing veneer, decorative pattern and novelty,
Beautiful facing paper, thus be favored by people in home decoration, it is usually used in making furniture, partition etc..It can apply existing
In generation, decorates the intermediate frame that picture is made in rimless picture and intermediate clamp bar, and rimless draw of national registration trade mark vision life is exactly so to answer
With, allow life it is more environmentally friendly.
Current medium density fiberboard is mostly solid construction, is increased manufacturing cost, and is not easy to splice.For this purpose, we,
It is proposed a kind of MULTILAYER COMPOSITE medium density fiberboard.
Summary of the invention
The purpose of the present invention is to provide a kind of MULTILAYER COMPOSITE medium density fiberboards, by the way that cavity is arranged inside medium density fiberboard, in sky
It is fixedly connected with Wavy tile contour plate in chamber, support force can be provided for medium density fiberboard upper and lower surface, mitigates this weight of medium density fiberboard, subtracts
Few cost of manufacture, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme: a kind of MULTILAYER COMPOSITE medium density fiberboard, including medium density fiberboard sheet
Body, the medium density fiberboard are set inside the body cavity, and the inside of the cavity is equipped with Wavy tile contour plate, the Wavy tile pressure
The wave crest of template and the inside of cavity closely connect, the two sides of the medium density fiberboard ontology be respectively fixedly connected with the first fixed plate and
The side of second fixed plate, first fixed plate and the second fixed plate is respectively equipped with the T-type sliding block and T-type sliding slot to match,
The side of the medium density fiberboard ontology offers strip groove, and the inside of the strip groove is equipped with reinforcing strip, the item by bolt
The two sides of shape slot offer sliding slot, and the internal slide of the sliding slot is connected with sliding block.
Preferably, the surface of the medium density fiberboard ontology is equipped with fireprotection layer.
Preferably, the surface of the fireprotection layer is equipped with waterproof layer.
Preferably, the inside of the cavity is filled with glass mat.
Preferably, the medium density fiberboard ontology includes top panel and lower panel.
Preferably, the inside of the reinforcing strip and strip groove offers threaded hole.
Compared with prior art, the beneficial effects of the present invention are:
The present invention changes the mode of traditional medium density fiberboard production, but by the way that cavity is arranged inside medium density fiberboard, in sky
It is fixedly connected with Wavy tile contour plate in chamber, support force can be provided for medium density fiberboard upper and lower surface, mitigates this weight of medium density fiberboard, subtracts
Few cost of manufacture；The T-type sliding block and T that match are equipped with by the first fixed plate and the second fixed plate in the two sides of medium density fiberboard ontology
Medium density fiberboard is fixed together using reinforcing strip convenient for the splicing between medium density fiberboard, improves the stability of splicing by type sliding slot.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the area Tu1Zhong A enlarged structure schematic diagram；
Fig. 3 is side structure schematic view of the invention.
In figure: 1 medium density fiberboard ontology, 2 cavitys, 3 Wavy tile contour plates, 4 first fixed plates, 5T type sliding block, 6 second are fixed
Plate, 7T type sliding slot, 8 strip grooves, 9 reinforcing strips, 10 sliding slots, 11 sliding blocks, 12 fireprotection layers, 13 waterproof layers, 14 glass mats, on 15
Panel, 16 lower panels, 17 threaded holes.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1~3 are please referred to, the present invention provides a kind of technical solution: a kind of MULTILAYER COMPOSITE medium density fiberboard, including medium density fiberboard ontology
1, the inside of the medium density fiberboard ontology 1 is equipped with cavity 2, and the inside of the cavity 2 is equipped with Wavy tile contour plate 3, the Wavy tile
Contour plate 3 can provide support force for 1 upper and lower surface of medium density fiberboard ontology, so that the uniform force of medium density fiberboard ontology 1, the wave
The wave crest of watt contour plate 3 is closely connect with the inside of cavity 2, and the two sides of the medium density fiberboard ontology 1 have been respectively fixedly connected with first
It is sliding that the side of fixed plate 4 and the second fixed plate 6, first fixed plate 4 and the second fixed plate 6 is respectively equipped with the T-type to match
Block 5 and T-type sliding slot 7, the side of the medium density fiberboard ontology 1 offer strip groove 8, and the inside of the strip groove 8 is pacified by bolt
Equipped with reinforcing strip 9, the two sides of the strip groove 8 offer sliding slot 10, and the internal slide of the sliding slot 10 is connected with sliding block 11,
After having spliced medium density fiberboard ontology 1 sliding block 11 should be inserted into the inside of sliding slot 10, and be conducive to improve aesthetics, it is described in
The surface of fine plate ontology 1 is equipped with fireprotection layer 12, which is that fluorocarbon coating has using fluororesin as main film forming substance
Weatherability, heat resistance, lower temperature resistance can effectively prevent fires, and the surface of the fireprotection layer 12 is equipped with waterproof layer 13, the waterproof layer
13 be melamine resin and phenolic resin blend, is conducive to the waterproof effect for improving medium density fiberboard ontology 1, the cavity 2
Inside is filled with glass mat 14, which is a kind of advanced electrically insulating material, heat-insulating material and fire screen
Cover material, feature be it is non-ignitable, anti-it is rotten, heat-insulated, sound-proofing is good, plays better sound-absorbing effect, the medium density fiberboard ontology 1 includes upper
Panel 15 and lower panel 16, convenient for the assembling between top panel 15, lower panel 16 and Wavy tile contour plate 3,9 He of reinforcing strip
The inside of strip groove 8 offers threaded hole 17, which is easy to use bolt that reinforcing strip 9 is fixed in strip groove 8.
Structural principle: in use, by group is carried out by glue between top panel 15, lower panel 16 and Wavy tile contour plate 3
Dress, then in the inside filled glass fiber plate 14 of cavity 2, plays soundproof effect, then consolidates first with T-type sliding block 5
Fixed board 4 and the second fixed plate 6 bonding with T-type sliding slot 7 make the two sides of top panel 15, lower panel 16, will when splicing
The correspondence of T-type sliding block 5 is inserted in T-type sliding slot 7, realizes docking between medium density fiberboard ontology 1 and medium density fiberboard ontology 1, so that splicing is more
Add conveniently, reinforcing strip 9 is mounted in sliding slot 8 by bolt then, is reinforced, it, will after having spliced medium density fiberboard ontology 1
Sliding block 11 is inserted into the inside of sliding slot 10, is conducive to improve aesthetics.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of MULTILAYER COMPOSITE medium density fiberboard, including medium density fiberboard ontology, it is characterised in that: the medium density fiberboard is set inside the body sky
Chamber, the inside of the cavity are equipped with Wavy tile contour plate, and the wave crest of the Wavy tile contour plate and the inside of cavity closely connect
Connect, the two sides of the medium density fiberboard ontology have been respectively fixedly connected with the first fixed plate and the second fixed plate, first fixed plate and
The side of second fixed plate is respectively equipped with the T-type sliding block and T-type sliding slot to match, and the side of the medium density fiberboard ontology offers item
The inside of shape slot, the strip groove is equipped with reinforcing strip by bolt, and the two sides of the strip groove offer sliding slot, the cunning
The internal slide of slot is connected with sliding block.
2. a kind of MULTILAYER COMPOSITE medium density fiberboard according to claim 1, it is characterised in that: the surface of the medium density fiberboard ontology is set
There is fireprotection layer.
3. a kind of MULTILAYER COMPOSITE medium density fiberboard according to claim 2, it is characterised in that: the surface of the fireprotection layer is equipped with anti-
Water layer.
4. a kind of MULTILAYER COMPOSITE medium density fiberboard according to claim 1, it is characterised in that: the inside of the cavity is filled with glass
Glass fiberboard.
5. a kind of MULTILAYER COMPOSITE medium density fiberboard according to claim 1, it is characterised in that: the medium density fiberboard ontology includes above
Plate and lower panel.
6. a kind of MULTILAYER COMPOSITE medium density fiberboard according to claim 1, it is characterised in that: the reinforcing strip and strip groove it is interior
Portion offers threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355850.6A CN110126394A (en) | 2019-04-29 | 2019-04-29 | A kind of MULTILAYER COMPOSITE medium density fiberboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355850.6A CN110126394A (en) | 2019-04-29 | 2019-04-29 | A kind of MULTILAYER COMPOSITE medium density fiberboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110126394A true CN110126394A (en) | 2019-08-16 |
Family
ID=67575787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910355850.6A Pending CN110126394A (en) | 2019-04-29 | 2019-04-29 | A kind of MULTILAYER COMPOSITE medium density fiberboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110126394A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110682608A (en) * | 2019-09-05 | 2020-01-14 | 江苏舒雅家具有限公司 | Fireproof environment-friendly sound insulation board |
| CN110847556A (en) * | 2019-11-28 | 2020-02-28 | 湖南麓上住宅工业科技有限公司 | Wood floor with anti-falling effect |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202181682U (en) * | 2011-07-27 | 2012-04-04 | 湖北天乐新材料有限公司 | Wood-plastic decorative plate with wiring groove |
| CN205674598U (en) * | 2016-05-27 | 2016-11-09 | 广州市利欣雅装饰材料有限公司 | Multilayer composite mdf |
| CN208502054U (en) * | 2018-06-22 | 2019-02-15 | 福建久源建筑装饰工程有限公司 | A kind of assembled architecture outer wall plate with sound insulation function |
| CN208518250U (en) * | 2018-05-15 | 2019-02-19 | 泰山石膏(福建)有限公司 | A kind of fire resisting pressure resistance Thistle board |
-
2019
- 2019-04-29 CN CN201910355850.6A patent/CN110126394A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202181682U (en) * | 2011-07-27 | 2012-04-04 | 湖北天乐新材料有限公司 | Wood-plastic decorative plate with wiring groove |
| CN205674598U (en) * | 2016-05-27 | 2016-11-09 | 广州市利欣雅装饰材料有限公司 | Multilayer composite mdf |
| CN208518250U (en) * | 2018-05-15 | 2019-02-19 | 泰山石膏(福建)有限公司 | A kind of fire resisting pressure resistance Thistle board |
| CN208502054U (en) * | 2018-06-22 | 2019-02-15 | 福建久源建筑装饰工程有限公司 | A kind of assembled architecture outer wall plate with sound insulation function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110682608A (en) * | 2019-09-05 | 2020-01-14 | 江苏舒雅家具有限公司 | Fireproof environment-friendly sound insulation board |
| CN110847556A (en) * | 2019-11-28 | 2020-02-28 | 湖南麓上住宅工业科技有限公司 | Wood floor with anti-falling effect |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190816 |
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| RJ01 | Rejection of invention patent application after publication |