CN104532719A - Polyurethane compression-tolerant floor structure and construction method thereof - Google Patents
Polyurethane compression-tolerant floor structure and construction method thereof Download PDFInfo
- Publication number
- CN104532719A CN104532719A CN201410681645.6A CN201410681645A CN104532719A CN 104532719 A CN104532719 A CN 104532719A CN 201410681645 A CN201410681645 A CN 201410681645A CN 104532719 A CN104532719 A CN 104532719A
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- China
- Prior art keywords
- polyurethane
- aluminium
- floor structure
- plastic panel
- leveling layer
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
- E01C13/06—Pavings made in situ, e.g. for sand grounds, clay courts E01C13/003
- E01C13/065—Pavings made in situ, e.g. for sand grounds, clay courts E01C13/003 at least one in situ layer consisting of or including bitumen, rubber or plastics
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6614—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6618—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Road Paving Structures (AREA)
- Floor Finish (AREA)
Abstract
The invention belongs to the field of construction of floors of outdoor sports places, and particularly relates to a polyurethane compression-tolerant floor structure and a construction method thereof. The polyurethane compression-tolerant floor structure is provided with a layer of aluminum plastic plate around track and field equipment, a rigid base layer and a gypsum-based leveling layer are paved at the periphery of the aluminum plastic plate from bottom to top, and a polyurethane elastic material intermediate coating and a water borne polyurethane top coating are arranged above the aluminum plastic plate and the gypsum-based leveling layer. The structure disclosed by the invention can effectively relieve the heavy pressure of track and field equipment to the floor during use, and the hollowing and cracking of the floor around the track and field equipment is avoided.
Description
Technical field
The invention belongs to the construction field of polyurethane floor, be specifically related to a kind of polyurethane compression resistant floor structure and construction method thereof.
Background technology
The terrace that athletic ground uses, except need possessing traditional function such as anti-skidding, ageing-resistant, also needs to possess resistance against compression, because athletic ground often needs install track and field equipment.Track and field equipment can cause weight to the terrace of periphery in use, if the resistance against compression of terrace is bad, cannot recover elasticity, be then easy to form crack at equipment periphery.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, a kind of polyurethane compression resistant floor structure and construction method thereof are provided.The weight that this structure can bear track and field equipment effectively recovers elasticity, and hollowing cracking phenomena not easily appears in the terrace of equipment periphery simultaneously.
For achieving the above object, the present invention adopts following technical scheme:
Polyurethane compression resistant floor structure, the periphery of track and field equipment is provided with one deck aluminium-plastic panel, described aluminium-plastic panel periphery is equipped with a rigid base, a gypsum base leveling layer from bottom to top, lays a polyurethane elastomeric materials floating coat, an aqueous polyurethane finishing coat above described aluminium-plastic panel, gypsum base leveling layer.
Described aluminium-plastic panel is no more than the height of described gypsum base leveling layer along track and field equipment axis along the height of track and field equipment axis.
Described, bondd by elastic gum between aluminium-plastic panel and rigid base, gypsum base leveling layer.
Described rigid base is made up of following component by weight: cement 120-140 part, graded sand 40-50 part, rubble 20-30 part, crosslinking agent 35-45 part.
Described polyurethane elastomeric materials floating coat is made up of following component by weight: elastic gum 60-70 part, waste tire powder 40-50 part, waste plastic 10-20 part form.
Described elastic gum its consist of: PET 20 wt%-30 wt%, polyethers N330 20 wt%-30 wt%, 2 methyl pentamethylenediamine 5 wt%-10 wt%, neopentyl glycol 5 wt%-10 wt%, hexamethylene diisocyanate 20 wt%-25 wt%, MDI 10 wt%-15 wt%.
The order number of described waste tire powder is 100-200 order, and the order number of described waste plastic is 300-400 order, and the order number of described rubble is 80-100 order.
A construction method for polyurethane compression resistant floor structure as above, comprises the following steps:
(1), after being cleaned out track and field equipment periphery, one deck aluminium-plastic panel processed is followed closely;
(2) the then blade coating elastic gum again in aluminium-plastic panel periphery, treats elastic gum not completely before solidification, lays rigid base, gypsum base leveling layer;
(3) deployed polyurethane elastomeric materials, evenly paves above leveling layer and aluminium-plastic panel, to form polyurethane elastomeric materials floating coat, then carries out compacting with finisher floating, maintenance 10-12h;
(4) last, with spray gun, face is coated with a point multiple tracks and is sprayed at floating coat on the surface to form aqueous polyurethane finishing coat.
beneficial effect of the present invention is:
The present invention because be provided with aluminium-plastic panel between track and field equipment and leveling layer, and can alleviate track and field equipment on the one hand and make the weight of terrace it cannot resilience, hollowing cracking phenomena appears in the terrace simultaneously avoiding equipment periphery; Gypsum base leveling layer is substituted conventional concrete leveling layer by the present invention on the other hand, and the ability of bearing ground pressure strengthens, and the resistance against compression of whole terrace is stronger.
Accompanying drawing explanation
Fig. 1 is the generalized section of this polyurethane compression resistant floor structure;
Fig. 2 is the top view of this polyurethane compression resistant floor structure;
Fig. 3 is the sectional drawing of this polyurethane compression resistant terrace leveling layer;
Label declaration: 1 is track and field equipment, and 2 is aluminium-plastic panel, and 3 is rigid base, and 4 is gypsum base leveling layer, and 5 is polyurethane elastomeric materials floating coat, and 6 is aqueous polyurethane finishing coat.
Detailed description of the invention
The present invention's the following example further illustrates the present invention, but protection scope of the present invention is not limited to the following example.
embodiment 1
As depicted in figs. 1 and 2, present embodiments provide a kind of polyurethane compression resistant floor structure, one aluminium-plastic panel 2 is arranged with outside track and field equipment 1, described aluminium-plastic panel 2 periphery is equipped with a rigid base 3, gypsum base leveling layer 4 from bottom to top, is equipped with polyurethane elastomeric materials floating coat 5, aqueous polyurethane finishing coat 6 above described aluminium-plastic panel 2 and gypsum base leveling layer 4.
Further, described aluminium-plastic panel 2 is no more than the height of described gypsum base leveling layer 4 along wall column axis along the height of track and field equipment axis.
This structure because be provided with aluminium-plastic panel between track and field equipment and leveling layer, and can alleviate track and field equipment on the one hand and make the weight of terrace it cannot resilience, hollowing cracking phenomena appears in the terrace simultaneously avoiding equipment periphery; Gypsum base leveling layer is substituted conventional concrete leveling layer by the present invention on the other hand, and the ability of bearing ground pressure strengthens, and the resistance against compression of whole terrace is stronger.
embodiment 2
Polyurethane compression resistant floor structure, the periphery of track and field equipment is provided with one deck aluminium-plastic panel, described aluminium-plastic panel periphery is equipped with a rigid base, a gypsum base leveling layer from bottom to top, lays a polyurethane elastomeric materials floating coat, an aqueous polyurethane finishing coat above described aluminium-plastic panel, gypsum base leveling layer.
Rigid base is made up of following component by weight: cement 120 parts, graded sand 50 parts, rubble 25 parts, crosslinking agent 40 parts.
Polyurethane elastomeric materials floating coat is made up of following component by weight: elastic gum 60 parts, 45 parts, waste tire powder, waste plastic 10 parts.
Elastic gum its consist of: PET 20 wt%, polyethers N330 25 wt%, 2 methyl pentamethylenediamine 7wt%, neopentyl glycol 10 wt%, hexamethylene diisocyanate 25 wt%, MDI 13wt%.
The order number of described waste tire powder is 100-200 order, and the order number of described waste plastic is 300-400 order, and the order number of described rubble is 80-100 order.
A construction method for polyurethane compression resistant floor structure as above, comprises the following steps:
(1), after being cleaned out track and field equipment periphery, one deck aluminium-plastic panel processed is followed closely;
(2) the then blade coating elastic gum again in aluminium-plastic panel periphery, treat elastic gum not completely before solidification, lay rigid base, gypsum base leveling layer, the consumption of elastic gum bonds firmly be as the criterion with aluminium-plastic panel and basic unit, leveling layer;
(3) deployed polyurethane elastomeric materials, evenly paves above leveling layer and aluminium-plastic panel, to form polyurethane elastomeric materials floating coat, then carries out compacting with finisher floating, maintenance 12 h;
(4) last, with spray gun, face is coated with a point multiple tracks and is sprayed at floating coat on the surface to form aqueous polyurethane finishing coat.
embodiment 3
Polyurethane compression resistant floor structure, the periphery of track and field equipment is provided with one deck aluminium-plastic panel, described aluminium-plastic panel periphery is equipped with a rigid base, a gypsum base leveling layer from bottom to top, lays a polyurethane elastomeric materials floating coat, an aqueous polyurethane finishing coat above described aluminium-plastic panel, gypsum base leveling layer.
Described aluminium-plastic panel is no more than the height of described gypsum base leveling layer along track and field equipment axis along the height of track and field equipment axis.
Described, bondd by elastic gum between aluminium-plastic panel and rigid base, gypsum base leveling layer.
Described rigid base is made up of following component by weight: cement 130 parts, graded sand 40 parts, rubble 20 parts, crosslinking agent 35 parts.
Described polyurethane elastomeric materials floating coat is made up of following component by weight: elastic gum 70 parts, 50 parts, waste tire powder, waste plastic 15 parts form.
Described elastic gum its consist of: PET 25 wt%, polyethers N330 20 wt%, 2 methyl pentamethylenediamine 10 wt%, neopentyl glycol 7 wt%, hexamethylene diisocyanate 23wt%, MDI 15 wt%.
The order number of described waste tire powder is 100-200 order, and the order number of described waste plastic is 300-400 order, and the order number of described rubble is 80-100 order.
A construction method for polyurethane compression resistant floor structure as above, comprises the following steps:
(1), after being cleaned out track and field equipment periphery, one deck aluminium-plastic panel processed is followed closely;
(2) the then blade coating elastic gum again in aluminium-plastic panel periphery, treat elastic gum not completely before solidification, lay rigid base, gypsum base leveling layer, the consumption of elastic gum bonds firmly be as the criterion with aluminium-plastic panel and basic unit, leveling layer;
(3) deployed polyurethane elastomeric materials, evenly paves above leveling layer and aluminium-plastic panel, to form polyurethane elastomeric materials floating coat, then carries out compacting with finisher floating, maintenance 11h;
(4) last, with spray gun, face is coated with a point multiple tracks and is sprayed at floating coat on the surface to form aqueous polyurethane finishing coat.
embodiment 4
Polyurethane compression resistant floor structure, the periphery of track and field equipment is provided with one deck aluminium-plastic panel, described aluminium-plastic panel periphery is equipped with a rigid base, a gypsum base leveling layer from bottom to top, lays a polyurethane elastomeric materials floating coat, an aqueous polyurethane finishing coat above described aluminium-plastic panel, gypsum base leveling layer.
Described aluminium-plastic panel is no more than the height of described gypsum base leveling layer along track and field equipment axis along the height of track and field equipment axis.
Described, bondd by elastic gum between aluminium-plastic panel and rigid base, gypsum base leveling layer.
Described rigid base is made up of following component by weight: cement 140 parts, graded sand 45 parts, rubble 30 parts, crosslinking agent 45 parts.
Described polyurethane elastomeric materials floating coat is made up of following component by weight: elastic gum 65 parts, 40 parts, waste tire powder, waste plastic 20 parts form.
Described elastic gum its consist of: PET 30 wt%, polyethers N330 30 wt%, 2 methyl pentamethylenediamine 5 wt%, neopentyl glycol 5 wt%, hexamethylene diisocyanate 20 wt%, MDI 10 wt%.
The order number of described waste tire powder is 100-200 order, and the order number of described waste plastic is 300-400 order, and the order number of described rubble is 80-100 order.
A construction method for polyurethane compression resistant floor structure as above, comprises the following steps:
(1), after being cleaned out track and field equipment periphery, one deck aluminium-plastic panel processed is followed closely;
(2) the then blade coating elastic gum again in aluminium-plastic panel periphery, treat elastic gum not completely before solidification, lay rigid base, gypsum base leveling layer, the consumption of elastic gum bonds firmly be as the criterion with aluminium-plastic panel and basic unit, leveling layer;
(3) deployed polyurethane elastomeric materials, evenly paves above leveling layer and aluminium-plastic panel, to form polyurethane elastomeric materials floating coat, then carries out compacting with finisher floating, maintenance 10h;
(4) last, with spray gun, face is coated with a point multiple tracks and is sprayed at floating coat on the surface to form aqueous polyurethane finishing coat.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (8)
1. polyurethane compression resistant floor structure, it is characterized in that: the outer of track and field equipment is arranged with one deck aluminium-plastic panel, described aluminium-plastic panel periphery is equipped with a rigid base, a gypsum base leveling layer from bottom to top, lays a polyurethane elastomeric materials floating coat, an aqueous polyurethane finishing coat above described aluminium-plastic panel, gypsum base leveling layer.
2. polyurethane compression resistant floor structure according to claim 1, is characterized in that: described aluminium-plastic panel is no more than the height of described gypsum base leveling layer along track and field equipment axis along the height of track and field equipment axis.
3. polyurethane compression resistant floor structure according to claim 1, is characterized in that: described, is bondd between aluminium-plastic panel and rigid base, gypsum base leveling layer by elastic gum.
4. polyurethane compression resistant floor structure according to claim 1, is characterized in that: described rigid base is made up of following component by weight: cement 120-140 part, graded sand 40-50 part, rubble 20-30 part, crosslinking agent 35-45 part.
5. polyurethane compression resistant floor structure according to claim 1, is characterized in that: described polyurethane elastomeric materials floating coat is made up of following component by weight: elastic gum 60-70 part, waste tire powder 40-50 part, waste plastic 10-20 part form.
6. polyurethane compression resistant floor structure according to claim 1, it is characterized in that: described elastic gum its consist of: PET 20 wt%-30 wt%, polyethers N330 20 wt%-30 wt%, 2 methyl pentamethylenediamine 5 wt%-10 wt%, neopentyl glycol 5 wt%-10 wt%, hexamethylene diisocyanate 20 wt%-25 wt%, MDI 10 wt%-15 wt%.
7. a construction method for polyurethane compression resistant floor structure as claimed in claim 1, is characterized in that: comprise the following steps:
(1), after being cleaned out track and field equipment periphery, one deck aluminium-plastic panel processed is followed closely;
(2) the then blade coating elastic gum again in aluminium-plastic panel periphery, treats elastic gum not completely before solidification, lays rigid base, gypsum base leveling layer;
(3) deployed polyurethane elastomeric materials, evenly paves above leveling layer and aluminium-plastic panel, to form polyurethane elastomeric materials floating coat, then carries out compacting with finisher floating, maintenance 10-12h;
(4) last, with spray gun, face is coated with a point multiple tracks and is sprayed at floating coat on the surface to form aqueous polyurethane finishing coat.
8. polyurethane compression resistant floor structure according to claim 1, is characterized in that: the order number of described waste tire powder is 100-200 order, and the order number of described waste plastic is 300-400 order, and the order number of described rubble is 80-100 order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410681645.6A CN104532719B (en) | 2014-11-25 | 2014-11-25 | polyurethane compression resistant floor structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410681645.6A CN104532719B (en) | 2014-11-25 | 2014-11-25 | polyurethane compression resistant floor structure and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104532719A true CN104532719A (en) | 2015-04-22 |
| CN104532719B CN104532719B (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410681645.6A Expired - Fee Related CN104532719B (en) | 2014-11-25 | 2014-11-25 | polyurethane compression resistant floor structure and construction method thereof |
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| CN (1) | CN104532719B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681665A (en) * | 2021-01-18 | 2021-04-20 | 陈德周 | Emery wear-resisting floor system structure |
| CN115368817A (en) * | 2021-05-18 | 2022-11-22 | 惠州博海体育设施有限公司 | Sports ground material and construction process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5298217A (en) * | 1992-02-28 | 1994-03-29 | Mitchell Rubber Products, Inc. | Impact attenuation safety cushion and system |
| CN1135005A (en) * | 1996-01-30 | 1996-11-06 | 封昌心 | Plastic ground surface dressing |
| CN1187512A (en) * | 1997-01-09 | 1998-07-15 | 程兆礼 | Plastic-cement field material and preparing process thereof |
| CN2361665Y (en) * | 1997-05-28 | 2000-02-02 | 吴正永 | Improved polyurethane sports ground |
| CN1379158A (en) * | 2002-01-30 | 2002-11-13 | G·K株式会社 | Spreading method of elastic ground material |
| CN2587925Y (en) * | 2002-10-24 | 2003-11-26 | 广州市旭鸿体育设施工程有限公司 | Composite track with foundation layer |
-
2014
- 2014-11-25 CN CN201410681645.6A patent/CN104532719B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5298217A (en) * | 1992-02-28 | 1994-03-29 | Mitchell Rubber Products, Inc. | Impact attenuation safety cushion and system |
| CN1135005A (en) * | 1996-01-30 | 1996-11-06 | 封昌心 | Plastic ground surface dressing |
| CN1187512A (en) * | 1997-01-09 | 1998-07-15 | 程兆礼 | Plastic-cement field material and preparing process thereof |
| CN2361665Y (en) * | 1997-05-28 | 2000-02-02 | 吴正永 | Improved polyurethane sports ground |
| CN1379158A (en) * | 2002-01-30 | 2002-11-13 | G·K株式会社 | Spreading method of elastic ground material |
| CN2587925Y (en) * | 2002-10-24 | 2003-11-26 | 广州市旭鸿体育设施工程有限公司 | Composite track with foundation layer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681665A (en) * | 2021-01-18 | 2021-04-20 | 陈德周 | Emery wear-resisting floor system structure |
| CN112681665B (en) * | 2021-01-18 | 2021-11-05 | 乐清市路航电气有限公司 | Emery wear-resisting floor system structure |
| CN115368817A (en) * | 2021-05-18 | 2022-11-22 | 惠州博海体育设施有限公司 | Sports ground material and construction process thereof |
| CN115368817B (en) * | 2021-05-18 | 2023-10-03 | 广东雅可利体育产业有限公司 | Sports ground material and construction process thereof |
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| Publication number | Publication date |
|---|---|
| CN104532719B (en) | 2016-07-27 |
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Effective date of registration: 20190621 Address after: 212200 Ganglong Road 127, Yangzhong Economic Development Zone, Zhenjiang City, Jiangsu Province Patentee after: Yangzhong East China Plastic Engineering Co., Ltd. Address before: 350300 Yadou No. 2, Yangxia Street, Fuzhou City, Fujian Province Patentee before: Fuzhou Royal Floor Co., Ltd. |
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