CN112411892A - Bare top decoration structure of steel structure building and elastic coating construction method - Google Patents
Bare top decoration structure of steel structure building and elastic coating construction method Download PDFInfo
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- CN112411892A CN112411892A CN202011249367.9A CN202011249367A CN112411892A CN 112411892 A CN112411892 A CN 112411892A CN 202011249367 A CN202011249367 A CN 202011249367A CN 112411892 A CN112411892 A CN 112411892A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 53
- 239000010959 steel Substances 0.000 title claims abstract description 53
- 239000011248 coating agent Substances 0.000 title claims abstract description 47
- 238000010276 construction Methods 0.000 title claims abstract description 41
- 238000005034 decoration Methods 0.000 title claims abstract description 15
- 238000005260 corrosion Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000003063 flame retardant Substances 0.000 claims abstract description 19
- 230000007797 corrosion Effects 0.000 claims abstract description 17
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000003973 paint Substances 0.000 claims abstract description 13
- 239000004816 latex Substances 0.000 claims abstract description 10
- 229920000126 latex Polymers 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims abstract description 7
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 19
- 238000001035 drying Methods 0.000 claims description 18
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- 238000005507 spraying Methods 0.000 claims description 5
- 230000007547 defect Effects 0.000 claims description 4
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- 239000004744 fabric Substances 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000012779 reinforcing material Substances 0.000 claims description 3
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- 239000004575 stone Substances 0.000 claims description 3
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- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 3
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Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
- E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
- E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
- E04D13/1662—Inverted roofs or exteriorly insulated roofs
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a bare top decoration structure of a steel structure building and an elastic coating construction method, which comprise a steel structure body, wherein the surface of the steel structure body comprises an underlayer, a corrosion-resistant layer, a waterproof layer, a flame-retardant thermal insulation layer and a latex paint layer, and the top of the underlayer is bonded with the bottom of the corrosion-resistant layer through a bonding agent. This bare top decorative structure of steel construction building and bullet scribble construction method, scribble the construction through the bullet in S2, stoving solidification and S4 in S3 scribble the membrane and detect, utilize bullet to scribble the ware, drying-machine and detector work, not only can make this bare top of steel construction building more rapid at the in-process of construction, and very big improvement final finished product quality, the flaw that some accident situations produced has been avoided simultaneously, the waterproof of this bare top of steel construction building has been improved, fire prevention, heat-resisting, corrosion resisting performance, the quality of processing has been improved on the basis of having shortened the engineering time.
Description
Technical Field
The invention relates to the technical field of steel structure buildings, in particular to a bare top decoration structure of a steel structure building and an elastic coating construction method.
Background
The steel structure building is a novel building system, breaks through the industrial boundary lines among the house area industry, the building industry and the metallurgical industry, and is integrated into a new industrial system, which is the steel structure building system generally seen by people in the industry, and compared with the traditional concrete building, the steel structure building replaces reinforced concrete by steel plates or section steel, so that the strength is higher, and the earthquake resistance is better; moreover, the components can be manufactured in a factory and installed on site, so that the construction period is greatly reduced; because the steel can be repeatedly used, the construction waste can be greatly reduced, and the steel is more environment-friendly, so the steel is widely adopted by all countries in the world and is applied to industrial buildings and civil buildings.
The existing steel structure building is often influenced by factors such as weather and the like in the construction process, the required time is long, ejection unevenness and flaws are generated in the processing process of part of ejectors, and the construction quality is poor due to the fact that no secondary detection and filling steps exist, so that the invention provides a steel structure building bare top decoration structure and an ejection coating construction method.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a steel structure building bare top decoration structure and an elastic coating construction method, and solves the problems that the existing steel structure building construction process is long in time and easy to influence, and the quality of finished products is poor due to the fact that no secondary detection and filling steps are available.
In order to achieve the purpose, the invention is realized by the following technical scheme: the steel structure building bare top decoration structure comprises a steel structure body, wherein the surface of the steel structure body comprises an underlayer, an anti-corrosion layer, a waterproof layer, a flame-retardant thermal insulation layer and a latex paint layer, the top of the underlayer is bonded with the bottom of the anti-corrosion layer through a binder, the top of the anti-corrosion layer is bonded with the bottom of the waterproof layer through a binder, the top of the waterproof layer is bonded with the bottom of the flame-retardant thermal insulation layer through a binder, and the top of the flame-retardant thermal insulation layer is bonded with the bottom of the latex paint layer through a binder;
the corrosion-resistant layer comprises a butyronitrile modified phenolic resin layer, an epoxy resin layer and an alkyd resin layer, the top of the butyronitrile modified phenolic resin layer is fixedly connected with the bottom of the epoxy resin layer, and the top of the epoxy resin layer is fixedly connected with the bottom of the alkyd resin layer;
the flame-retardant heat-insulating layer comprises a polypropylene fiber layer, a magnesium stearate layer and a glass fiber layer, the top of the polypropylene fiber layer is fixedly connected with the bottom of the magnesium stearate layer, and the top of the magnesium stearate layer is fixedly connected with the bottom of the glass fiber layer.
Preferably, the waterproof layer comprises a petroleum resin layer, a styrene-butadiene rubber layer and a synthetic high polymer layer, the top of the petroleum resin layer is fixedly connected with the bottom of the styrene-butadiene rubber layer, and the top of the styrene-butadiene rubber layer is fixedly connected with the bottom of the synthetic high polymer layer.
The invention also discloses an elastic coating construction method of the bare-top decorative structure of the steel structure building, which specifically comprises the following steps:
s1, base layer treatment: firstly, polishing the surface of the bare top of a steel structure building, removing an oxide layer on the surface, polishing the oxide layer to meet the required standard, and coating;
s2, coating: after the corresponding materials are fully prepared, stirring and molding the materials, and sequentially and elastically coating an anti-corrosion layer, a waterproof layer, a flame-retardant heat-insulating layer and a latex paint layer from bottom to top;
s3, curing: after the smearing is finished, the drying machine is used for uniformly moving to enable the coating to be solidified and reach the corresponding acceptance grade;
s4, coating film inspection: and the positions which are not sprayed or are not uniformly sprayed are prevented from being existed in the coating process, and the inspection and rework are carried out.
Preferably, in S1, the surface of the steel structure is polished by a polisher, the surface is primed after polishing, the gap and the gap are filled, wherein the priming is performed by 1:3 cement mortar, the part with larger local deviation is leveled by 1:2.5 cement mortar, and then the division bars are adhered and uniformly sprayed by a guniting device.
Preferably, the waterproof layer in the step S2 is divided into two layers;
the first step is that after a base layer is cleaned up, a layer of coating is fully brushed, after drying and film forming, a layer of glass fiber cloth matrix reinforcing material is laid, a layer of coating is fully brushed and fixed on the flattened surface, coating construction is carried out for the next time after drying, and the total thickness of a waterproof coating film is more than 3 mm;
and a rigid waterproof layer is laid on the second layer, construction is carried out about two days after the first flexible waterproof layer is finished, a high-grade fatty acid mortar waterproof agent, cement, sand, fine stone aggregate and fiber are mainly used as basic materials, and the thickness of the waterproof layer is 20-30 mm.
Preferably, in the step S2, 1-2 primer coats are firstly coated on the base layer in the elastic coating process, and the elastic coating process is carried out after the primer coats are dried, wherein in the elastic coating process, the spraying port of the elastic coating device is vertically opposite to the wall surface, the distance is kept at 500mm, and the elastic coating process is carried out from top to bottom and from left to right at a certain speed.
Preferably, when the drying is performed by using the dryer in S3, the required temperature is 50 degrees celsius, wherein the drying time is 2-3 hours, and the uniform movement is performed by using a machine.
Preferably, the data is analyzed by the image acquisition module in S4, the defects and problems are repaired, and the curing operation in S3 is performed again.
Advantageous effects
The invention provides a bare top decoration structure of a steel structure building and an elastic coating construction method. Compared with the prior art, the method has the following beneficial effects: the steel structure building bare top decoration structure and the elastic coating construction method are processed through S1 and a base layer: firstly, polishing the surface of the bare top of a steel structure building, removing an oxide layer on the surface, polishing the oxide layer to meet the required standard, and then coating S2: after preparing corresponding material fully, stir the shaping with each material, from up down in proper order elastic coating corrosion-resistant layer, waterproof layer, fire-retardant insulating layer and latex paint layer, S3, solidification: after finishing painting, uniformly moving by using a dryer to enable the paint to be solidified and reach a corresponding acceptance grade, and performing S4 coating inspection: prevent that the in-process of paining from having not spouted to, or spout inhomogeneous position, carry out inspection and redoing, scribble the construction through the bullet in S2, stoving solidification and S4 in S3 scribble the membrane and detect, utilize the bullet to scribble the ware, drying-machine and detector work, not only can make the naked top of this steel construction building more rapid at the in-process of construction, and very big improvement final finished product quality, the flaw that some unexpected circumstances produced has been avoided simultaneously, the waterproof on the naked top of this steel construction building has been improved, fire prevention, heat-resisting, corrosion-resistant performance, the quality of processing has been improved on the basis of having shortened the engineering time.
Drawings
FIG. 1 is a schematic view of a layer structure of the present invention;
FIG. 2 is a schematic view of a corrosion resistant layer structure of the present invention;
FIG. 3 is a schematic view of a waterproof layer according to the present invention;
FIG. 4 is a schematic view of a layer structure of the flame-retardant and heat-insulating layer of the present invention;
FIG. 5 is a process diagram of the construction process of the present invention.
In the figure: 1-underlayer, 2-corrosion-resistant layer, 21-butyronitrile modified phenolic resin layer, 22-epoxy resin layer, 23-alkyd resin layer, 3-waterproof layer, 31-petroleum resin layer, 32-butadiene styrene rubber layer, 33-synthetic high polymer layer, 4-flame-retardant heat-insulating layer, 41-polypropylene fiber layer, 42-magnesium stearate layer, 43-glass fiber layer and 5-latex paint layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a naked top decorative structure of steel construction building, including steel construction body, steel construction body's surface includes subbase 1, corrosion resistant layer 2, waterproof layer 3, fire-retardant insulating layer 4 and latex paint layer 5, include petroleum resin layer 31 in the waterproof layer 3, butadiene styrene rubber layer 32 and synthetic polymer layer 33, the top of petroleum resin layer 31 and the bottom fixed connection of butadiene styrene rubber layer 32, the top of butadiene styrene rubber layer 32 and the bottom fixed connection of synthetic polymer layer 33, the top of subbase 1 passes through the binder and bonds with the bottom of corrosion resistant layer 2, the top of corrosion resistant layer 2 passes through the binder and bonds with the bottom of waterproof layer 3, the top of waterproof layer 3 passes through the binder and bonds with the bottom of fire-retardant insulating layer 4, the top of fire-retardant insulating layer 4 passes through the binder and bonds with the bottom of latex paint layer 5, including butadiene acrylonitrile modified phenol-formaldehyde resin, Epoxy layer 22 and alkyd layer 23, the top of butyronitrile modified phenol-formaldehyde resin layer 21 and the bottom fixed connection of epoxy layer 22, the top of epoxy layer 22 and the bottom fixed connection of alkyd layer 23, including polypropylene fiber layer 41, magnesium stearate layer 42 and glass fiber layer 43 in fire-retardant insulating layer 4, the top of polypropylene fiber layer 41 and the bottom fixed connection of magnesium stearate layer 42, the top of magnesium stearate layer 42 and the bottom fixed connection of glass fiber layer 43.
Referring to fig. 5, the invention also discloses an elastic coating construction method of the bare top decoration structure of the steel structure building, which specifically comprises the following steps:
s1, base layer treatment: firstly, polishing the surface of the bare top of a steel structure building, removing an oxide layer on the surface, polishing the oxide layer to meet the required standard, and coating;
s2, coating: after the corresponding materials are fully prepared, stirring and molding the materials, and sequentially and elastically coating a corrosion-resistant layer 2, a waterproof layer 3, a flame-retardant heat-insulating layer 4 and a latex paint layer 5 from bottom to top;
s3, curing: after the smearing is finished, the drying machine is used for uniformly moving to enable the coating to be solidified and reach the corresponding acceptance grade;
s4, coating film inspection: and the positions which are not sprayed or are not uniformly sprayed are prevented from being existed in the coating process, and the inspection and rework are carried out.
In the embodiment of the invention, in S1, a grinding machine is used for grinding the surface of the steel structure, the surface is subjected to priming after grinding, gaps and gaps are filled, wherein 1:3 cement mortar is used for priming, 1:2.5 cement mortar is used for partially leveling the part with larger local deviation, then division bars are pasted, and a guniting device is used for spraying uniformly.
In the embodiment of the invention, the waterproof layer 3 in the S2 is divided into two layers;
the first step is that after a base layer is cleaned up, a layer of coating is fully brushed, after drying and film forming, a layer of glass fiber cloth matrix reinforcing material is laid, a layer of coating is fully brushed and fixed on the flattened surface, coating construction is carried out for the next time after drying, and the total thickness of a waterproof coating film is more than 3 mm;
and a rigid waterproof layer is laid on the second layer, construction is carried out about two days after the first flexible waterproof layer is finished, a high-grade fatty acid mortar waterproof agent, cement, sand, fine stone aggregate and fiber are mainly used as basic materials, and the thickness of the waterproof layer is 20-30 mm.
In the embodiment of the invention, in the step S2, 1-2 primer coats are firstly coated on the base layer in an elastic way, and the base layer is coated in an elastic way after being dried, wherein in the elastic coating process, the spraying port of the elastic coating device is vertically opposite to the wall surface, the distance is kept at 500mm, and the elastic coating is carried out from top to bottom and from left to right at a certain speed.
In the embodiment of the present invention, when the drying machine is used for drying in S3, the required temperature is 50 degrees celsius, wherein the drying time is 2-3 hours, and the drying machine is used for uniform movement.
In the embodiment of the present invention, the data is analyzed by the image acquisition module in S4, the defects and problems are repaired, and the curing operation in S3 is performed again.
In conclusion, through the elastic coating construction in the S2, the drying and curing in the S3 and the coating detection in the S4, the elastic coating device, the dryer and the detector are utilized to work, so that the bare top of the steel structure building is quicker in the construction process, the quality of a final finished product is greatly improved, meanwhile, flaws caused by some unexpected conditions are avoided, the waterproof, fireproof, heat-resistant and corrosion-resistant performances of the bare top of the steel structure building are improved, and the processing quality is improved on the basis of shortening the construction time.
And those not described in detail in this specification are well within the skill of those in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a naked top decorative structure of steel construction building, includes steel construction body, its characterized in that: the surface of the steel structure body comprises an underlayer (1), a corrosion-resistant layer (2), a waterproof layer (3), a flame-retardant thermal insulation layer (4) and an emulsion paint layer (5), wherein the top of the underlayer (1) is bonded with the bottom of the corrosion-resistant layer (2) through a binder, the top of the corrosion-resistant layer (2) is bonded with the bottom of the waterproof layer (3) through a binder, the top of the waterproof layer (3) is bonded with the bottom of the flame-retardant thermal insulation layer (4) through a binder, and the top of the flame-retardant thermal insulation layer (4) is bonded with the bottom of the emulsion paint layer (5) through a binder;
the corrosion-resistant layer (2) comprises a butyronitrile modified phenolic resin layer (21), an epoxy resin layer (22) and an alkyd resin layer (23), the top of the butyronitrile modified phenolic resin layer (21) is fixedly connected with the bottom of the epoxy resin layer (22), and the top of the epoxy resin layer (22) is fixedly connected with the bottom of the alkyd resin layer (23);
the flame-retardant heat-insulating layer (4) comprises a polypropylene fiber layer (41), a magnesium stearate layer (42) and a glass fiber layer (43), the top of the polypropylene fiber layer (41) is fixedly connected with the bottom of the magnesium stearate layer (42), and the top of the magnesium stearate layer (42) is fixedly connected with the bottom of the glass fiber layer (43).
2. The bare top decorative structure of a steel structure building according to claim 1, wherein: the waterproof layer (3) comprises a petroleum resin layer (31), a styrene-butadiene rubber layer (32) and a synthetic high polymer layer (33), the top of the petroleum resin layer (31) is fixedly connected with the bottom of the styrene-butadiene rubber layer (32), and the top of the styrene-butadiene rubber layer (32) is fixedly connected with the bottom of the synthetic high polymer layer (33).
3. The utility model provides a steel construction building naked top decorative structure's bullet scribbles construction method which characterized in that: the method specifically comprises the following steps:
s1, base layer treatment: firstly, polishing the surface of the bare top of a steel structure building, removing an oxide layer on the surface, polishing the oxide layer to meet the required standard, and coating;
s2, coating: after corresponding materials are fully prepared, stirring and molding the materials, and sequentially and elastically coating a corrosion-resistant layer (2), a waterproof layer (3), a flame-retardant heat-insulating layer (4) and a latex paint layer (5) from bottom to top;
s3, curing: after the smearing is finished, the drying machine is used for uniformly moving to enable the coating to be solidified and reach the corresponding acceptance grade;
s4, coating film inspection: and the positions which are not sprayed or are not uniformly sprayed are prevented from being existed in the coating process, and the inspection and rework are carried out.
4. The method for applying the bullet on the bare top decoration structure of the steel structure building according to the claim 3, wherein: and S1, polishing the surface of the steel structure by using a polisher, priming the surface after polishing, filling gaps and gaps, wherein 1:3 cement mortar is used for priming, 1:2.5 cement mortar is used for partially leveling the part with larger local deviation, then grid strips are adhered, and a guniting device is used for spraying uniformly.
5. The method for applying the bullet on the bare top decoration structure of the steel structure building according to the claim 3, wherein: the waterproof layer (3) in the S2 is divided into two layers;
the first step is that after a base layer is cleaned up, a layer of coating is fully brushed, after drying and film forming, a layer of glass fiber cloth matrix reinforcing material is laid, a layer of coating is fully brushed and fixed on the flattened surface, coating construction is carried out for the next time after drying, and the total thickness of a waterproof coating film is more than 3 mm;
and a rigid waterproof layer is laid on the second layer, construction is carried out about two days after the first flexible waterproof layer is finished, a high-grade fatty acid mortar waterproof agent, cement, sand, fine stone aggregate and fiber are mainly used as basic materials, and the thickness of the waterproof layer is 20-30 mm.
6. The method for applying the bullet on the bare top decoration structure of the steel structure building according to the claim 3, wherein: in the step S2, 1-2 primer coats are firstly coated on the base layer in the elastic coating process, and the elastic coating process is carried out after the primer coats are dried, wherein in the elastic coating process, the spraying port of the elastic coating device is vertically opposite to the wall surface, the distance is kept at 500mm, and the elastic coating process is carried out from top to bottom and from left to right at a certain speed.
7. The method for applying the bullet on the bare top decoration structure of the steel structure building according to the claim 3, wherein: and in the step S3, when the dryer is used for drying, the required temperature is 50 ℃, the drying time is 2-3 hours, and the dryer is used for uniformly moving by a machine.
8. The method for applying the bullet on the bare top decoration structure of the steel structure building according to the claim 3, wherein: and in the step S4, the data is analyzed by using an image acquisition module, the defects and problems are repaired, and the curing operation in the step S3 is performed again.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153079A (en) * | 2021-03-25 | 2021-07-23 | 江苏塞米门窗科技有限公司 | Aluminum alloy sliding energy-saving door and window system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102182253A (en) * | 2011-04-29 | 2011-09-14 | 杨太龙 | Manufacturing method of rubber and chemical fiber synthetic waterproof sheet and product thereof |
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