CN102002970A - Mute drainage pipe - Google Patents
Mute drainage pipe Download PDFInfo
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- CN102002970A CN102002970A CN 201010517921 CN201010517921A CN102002970A CN 102002970 A CN102002970 A CN 102002970A CN 201010517921 CN201010517921 CN 201010517921 CN 201010517921 A CN201010517921 A CN 201010517921A CN 102002970 A CN102002970 A CN 102002970A
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- Prior art keywords
- polypropylene material
- layer
- quiet
- ultra
- filler
- 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.)
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- 239000000463 material Substances 0.000 claims abstract description 46
- 239000004743 Polypropylene Substances 0.000 claims abstract description 43
- -1 polypropylene Polymers 0.000 claims abstract description 41
- 229920001155 polypropylene Polymers 0.000 claims abstract description 41
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims abstract description 17
- 150000001875 compounds Chemical class 0.000 claims abstract description 7
- 239000003063 flame retardant Substances 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims description 20
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 12
- 239000003963 antioxidant agent Substances 0.000 claims description 12
- 230000003078 antioxidant effect Effects 0.000 claims description 12
- DCAYPVUWAIABOU-UHFFFAOYSA-N hexadecane Chemical compound CCCCCCCCCCCCCCCC DCAYPVUWAIABOU-UHFFFAOYSA-N 0.000 claims description 8
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 claims description 4
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 claims description 4
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 claims description 4
- HQWDILUMZXPFNW-UHFFFAOYSA-N 2-cyano-2-nitroacetamide Chemical compound NC(=O)C(C#N)[N+]([O-])=O HQWDILUMZXPFNW-UHFFFAOYSA-N 0.000 claims description 2
- 101100136616 Arabidopsis thaliana PHT1-4 gene Proteins 0.000 claims description 2
- 101100243924 Pseudomonas putida pht4 gene Proteins 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 7
- 239000004033 plastic Substances 0.000 abstract description 5
- 229920003023 plastic Polymers 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000012856 packing Methods 0.000 abstract 3
- 239000004595 color masterbatch Substances 0.000 abstract 1
- 229920005630 polypropylene random copolymer Polymers 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical class [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- 208000007443 Neurasthenia Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 206010003549 asthenia Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002989 phenols Chemical group 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Abstract
The invention relates to a mute drainage pipe, which effectively solves the problems of large noise, poor high temperature resistance and poor chemical corrosion resistance of the traditional drainage pipe. In the technical scheme for solving the problems, a multi-layer compound is made of a polypropylene material inner layer, a middle packing layer and a polypropylene material outer layer, wherein the thickness ratio of the polypropylene material inner layer to the middle packing layer to the polypropylene material outer layer is 1:5:1; the polypropylene material inner layer and the polypropylene material outer layer are made by mixing the following components: 17-87wt% of polypropylene random copolymer, 11-80wt% of packing, 0.5-3wt% of color master batch, 0.5-3wt% of antioxygen, 0.5-2wt% of ultraviolet absorber and 0.1-2wt% of fire retardant, wherein the total amount is 100 percent. Except the characteristics of chemical corrosion resistance, heat resistance and impact resistance just like a common plastic pipe, the drainage pipe also has the biggest characteristic of good muting effect, the noise is reduced by 20dB in comparison with the common plastic pipe, the noise is reduced by 10dB in comparison with a cast iron pipe.
Description
One, technical field
The present invention relates to a kind of quiet gutter.
Two, background technology
Along with improving constantly of living standard, people are also more and more higher to building human settlement's requirement, noise pollution becomes the pollution that after air pollution the human lives is had the greatest impact, according to statistics, the city noise strength ratio strengthened 4 times in 1956 now, and draining noise has had a strong impact on daily life as one of civilian construction main noise source, and people expect to have safe, healthy, comfortable indoor living space more.According to the regulation among the GB GBJ118-88 " Code for sound insulation design of civil buildings ": (is example with the dwelling house) bedroom noise at night must not surpass 30dB, the highlyest must not surpass 40dB.And in the reality test, the noise that is produced during most on the market normal discharge tubing and pipe fitting draining at present is much larger than 40dB.In case history, also be no lack of owing to drainage pipe produces noise and disturb the resident to sleep and produce worried effect, and the neurasthenia that causes thus and other non-specific diseases etc.
In order to overcome PVC-U gutter draining noise problems of too, develop foamed sandwich pipe, helix tube etc. in succession, the noise when reducing draining.Though these tubing have certain quiet effect, effect is unsatisfactory, and high temperature resistant and resistance to chemical attack ability, the noise of foamed sandwich pipe has only reduced the 3-5 decibel approximately than the noise of common solid wall pipe material, does not reach noiseproof requirement at all, thus improvement and innovate imperative.
Three, summary of the invention
At above-mentioned situation, for overcoming the prior art defective, the present invention's purpose just provides a kind of quiet gutter, and it is big effectively to solve present gutter noise, the problem of high temperature resistant and resistance to chemical attack ability.
The technical scheme that the present invention solves is, the multilayer composite of making by polypropylene material internal layer, intermediate filler layer and polypropylene material skin, inner, middle and outer layer thickness ratio is 1: 5: 1, polypropylene material internal layer and polypropylene material skin are all by by weight: trackless COPP 17-87%, filler 11-80%, Masterbatch 0.5-3%, antioxidant 0.5-3%, ultra-violet absorber 0.5-2%, fire retardant 0.1-2%, and total amount 100% mixing is made; Said intermediate filler layer and filler all are quiet pipe as special material of PP (polypropylene) that commercially available Shanghai generation profit environment-friendly materials Co., Ltd produces, and the quiet pipe as special material of PP (polypropylene) is the macromolecule sound absorption material of a kind of multicomponent polymeric, inorganic matter blend; Said Masterbatch is the commercially available Masterbatch with vector resin; Said antioxidant is phenolic compound, and promptly synthetic antioxidant GA-80, the HP1 of Ciba of Sasaki, the CF one 120 B B-complex E antioxidant of HoffmannLaroche company etc. is a kind of; Said ultra-violet absorber is hindered amines, benzophenone light stabilizer, for example: have Chinese-foreign joint moral to send out a kind of of the UV-531 ultra-violet absorber of [Nantong] biochemical industry Co., Ltd production, UV-P ultra-violet absorber, UV-9 ultra-violet absorber etc.; Said fire retardant is the bromine compounds, and the bromide that has hexabromo ring hexadecane, three (2, the 3-dibromopropyl) fulminuric acid fat, aromatic series to use always that promptly alicyclic bromide is commonly used has a kind of of tetrabromobisphenol A, deca-BDE, PHT4 etc.; During its tubulation, all adopt routine techniques, outstanding substantive distinguishing features of the present invention is the material combination of tubing.
Gutter of the present invention is except that the chemical resistance with general plastic pipe, heat resistance, impact resistance, and maximum characteristic is quiet effective, will reduce 20dB than common plastics tube, than the low 10dB of cast iron pipe.
Four, the specific embodiment
Below in conjunction with embodiment the specific embodiment of the present invention is elaborated.
Embodiment 1:
The present invention in the specific implementation, can make inner, middle and outer layer thickness ratio by polypropylene material internal layer, intermediate filler layer and polypropylene material skin is 1: 5: 1 compound quiet gutter, and polypropylene material internal layer and polypropylene material skin are all by by weight: trackless COPP 80%, filler 17%, Masterbatch 1.2%, antioxidant GA-800.8%, UV-531 ultra-violet absorber 0.7%, hexabromo ring hexadecane 0.3% mixing are made.
Embodiment 2:
It is 1: 5: 1 compound quiet gutter that the present invention also can make inner, middle and outer layer thickness ratio by polypropylene material internal layer, intermediate filler layer and polypropylene material skin, and polypropylene material internal layer and polypropylene material skin are all by by weight: the HP12% of trackless COPP 52%, filler 42%, Masterbatch 2%, Ciba, UV-P ultra-violet absorber 1.5%, tetrabromobisphenol A 0.5% mixing are made.
Embodiment 3:
It is 1: 5: 1 compound quiet gutter that the present invention can make inner, middle and outer layer thickness ratio by polypropylene material internal layer, intermediate filler layer and polypropylene material skin, and polypropylene material internal layer and polypropylene material skin are all by by weight: trackless COPP 20%, filler 70%, Masterbatch 3%, CF one 120 B B-complex E antioxidant 3%, UV-9 ultra-violet absorber 2%, deca-BDE 2% mixing are made.
Mute drainage pipe of the present invention meets national standard after testing, and has the following advantages:
1), muting function excellence: absorb the energy of sound wave by highdensity special molecular structure material, muting function obviously is better than other pipelines, detects through national correlation department: conventional draining noise value can be low to moderate below 40 decibels;
2), superpower chemical resistance: pipe material can tolerate the fluid discharge of PH2-PH12;
3), excellent heat-resisting quantity: but continuous blow-down is not higher than 60 ℃ of hot water, instantaneous temperature at discharging condensate can reach 95 ℃, and the temperature at discharging condensate of PVC-U can not be above 40 ℃;
4), favorable shock resistance: the quiet gutter of the present invention has superior toughness, can not produce the crack when being subjected to superpower impact, even tubing is flattened, cracking also can not occur, from and also guarantee that tubing can be because of not being subjected to impacting the damage that causes.
5), advanced flexible connecting method: easy accessibility and not limited by installation environment, reduce installation cost.Watertightness and self-tuning performance are good, need not use expansion coupling, and sound was to next pipe fitting transmission when the saving pipe fitting was avoided water impact simultaneously;
6), speed of application is fast: piping erection, dismounting and maintenance are very convenient, can satisfy the rapid construction demand, help the Installation unit reduction of erection time;
7), long service life: normal use can reach more than 50 years, and need not regular maintenance;
8), environmental protection: pipeline uses nontoxic acrylic resin to be raw material, does not need to use bonding agent during connection, and sustainable 15 years of the bonding agent toxicity that PVC-U uses, thereby water quality is not formed secondary pollution.Have lightweight, advantage such as nontoxic, fire-retardant, ageing-resistant.
Heat resistance of the present invention is very good, chemical resistance, low temperature resistant, shock resistance, creep resistant, long-life, high strength, advantage such as counter-bending, corrosion-resistant and nontoxic, as a kind of novel environment friendly product, can all recycle and reuse, noise reduction is obvious, will reduce 20dB than common plastics tube, than the low 10dB of cast iron pipe, can long-term work under 60 ℃ high temperature, reach 50 years application life.
Claims (4)
1. quiet gutter, it is characterized in that, the multilayer composite of making by polypropylene material internal layer, intermediate filler layer and polypropylene material skin, inner, middle and outer layer thickness ratio is 1: 5: 1, polypropylene material internal layer and polypropylene material skin are all by by weight: trackless COPP 17-87%, filler 11-80%, Masterbatch 0.5-3%, antioxidant 0.5-3%, ultra-violet absorber 0.5-2%, fire retardant 0.1-2%, and total amount 100% mixing is made; Said intermediate filler layer and filler all are the quiet pipe as special material of polypropylene; Said Masterbatch is the Masterbatch with vector resin; Said antioxidant is a kind of of the HP1 of antioxidant GA-80, Ciba and CF one 120 B B-complex E antioxidant; Said ultra-violet absorber is a kind of of UV-531 ultra-violet absorber, UV-P ultra-violet absorber, UV-9 ultra-violet absorber; Said fire retardant is a kind of of hexabromo ring hexadecane, three (2, the 3-dibromopropyl) fulminuric acid fat, tetrabromobisphenol A, deca-BDE, PHT4.
2. quiet gutter according to claim 1, it is characterized in that, making inner, middle and outer layer thickness ratio by polypropylene material internal layer, intermediate filler layer and polypropylene material skin is 1: 5: 1 compound quiet gutter, and polypropylene material internal layer and polypropylene material skin are all by by weight: trackless COPP 80%, filler 17%, Masterbatch 1.2%, antioxidant GA-80 0.8%, UV-531 ultra-violet absorber 0.7%, hexabromo ring hexadecane 0.3% mixing are made.
3. quiet gutter according to claim 1, it is characterized in that, making inner, middle and outer layer thickness ratio by polypropylene material internal layer, intermediate filler layer and polypropylene material skin is 1: 5: 1 compound quiet gutter, and polypropylene material internal layer and polypropylene material skin are all by by weight: the HP1 2% of trackless COPP 52%, filler 42%, Masterbatch 2%, Ciba, UV-P ultra-violet absorber 1.5%, tetrabromobisphenol A 0.5% mixing are made.
4. quiet gutter according to claim 1, it is characterized in that, making inner, middle and outer layer thickness ratio by polypropylene material internal layer, intermediate filler layer and polypropylene material skin is 1: 5: 1 compound quiet gutter, and polypropylene material internal layer and polypropylene material skin are all by by weight: trackless COPP 20%, filler 70%, Masterbatch 3%, CF one 120 B B-complex E antioxidant 3%, UV-9 ultra-violet absorber 2%, deca-BDE 2% mixing are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105179217A CN102002970B (en) | 2010-10-25 | 2010-10-25 | Mute drainage pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105179217A CN102002970B (en) | 2010-10-25 | 2010-10-25 | Mute drainage pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102002970A true CN102002970A (en) | 2011-04-06 |
| CN102002970B CN102002970B (en) | 2011-08-17 |
Family
ID=43810656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105179217A Active CN102002970B (en) | 2010-10-25 | 2010-10-25 | Mute drainage pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102002970B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336966A (en) * | 2011-08-17 | 2012-02-01 | 安徽广德金鹏科技发展有限公司 | Noise-damping pipe |
| CN102345312A (en) * | 2011-07-15 | 2012-02-08 | 康泰塑胶科技集团有限公司 | Mute water discharging pipe |
| CN102953411A (en) * | 2012-11-15 | 2013-03-06 | 苏州金螳螂建筑装饰股份有限公司 | Socket-connecting-type silent drain pipe |
| CN102966801A (en) * | 2012-11-02 | 2013-03-13 | 宏岳塑胶集团有限公司 | Method for preparing high-strength heat-resistant and cold-resistant modified polypropylene pipe |
| CN103030938A (en) * | 2012-12-28 | 2013-04-10 | 江苏百安居管业有限公司 | PET drainage pipe fitting and manufacturing method thereof |
| CN103912737A (en) * | 2014-04-11 | 2014-07-09 | 天津中财型材有限责任公司 | Ultra-silence pipe and manufacturing method thereof |
| CN104086853A (en) * | 2014-05-29 | 2014-10-08 | 安徽海纳川塑业科技有限公司 | Noise-reducing muted drainpipe |
| CN107383588A (en) * | 2017-06-26 | 2017-11-24 | 钟建华 | Aging-proof plastic pipe |
| CN108192221A (en) * | 2017-12-29 | 2018-06-22 | 河南中泽新材料股份有限公司 | Flame-resistant high-temperature-resistant reinforced polypropylene mute drainage pipe and its application |
| CN114658927A (en) * | 2022-03-31 | 2022-06-24 | 湖北大洋塑胶有限公司 | Polypropylene drainage riser |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1424470A (en) * | 2001-12-14 | 2003-06-18 | 北新建材(集团)有限公司 | Low-noise water drain pipe |
| JP2003241763A (en) * | 2002-02-18 | 2003-08-29 | Sekisui Chem Co Ltd | Soundproof device for conduit |
-
2010
- 2010-10-25 CN CN2010105179217A patent/CN102002970B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1424470A (en) * | 2001-12-14 | 2003-06-18 | 北新建材(集团)有限公司 | Low-noise water drain pipe |
| JP2003241763A (en) * | 2002-02-18 | 2003-08-29 | Sekisui Chem Co Ltd | Soundproof device for conduit |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345312A (en) * | 2011-07-15 | 2012-02-08 | 康泰塑胶科技集团有限公司 | Mute water discharging pipe |
| CN102345312B (en) * | 2011-07-15 | 2014-06-25 | 康泰塑胶科技集团有限公司 | Mute water discharging pipe |
| CN102336966A (en) * | 2011-08-17 | 2012-02-01 | 安徽广德金鹏科技发展有限公司 | Noise-damping pipe |
| CN102966801A (en) * | 2012-11-02 | 2013-03-13 | 宏岳塑胶集团有限公司 | Method for preparing high-strength heat-resistant and cold-resistant modified polypropylene pipe |
| CN102966801B (en) * | 2012-11-02 | 2015-09-30 | 宏岳塑胶集团有限公司 | A kind of high strength heat resistant resists cold the preparation method of modified polypropylene pipes |
| CN102953411A (en) * | 2012-11-15 | 2013-03-06 | 苏州金螳螂建筑装饰股份有限公司 | Socket-connecting-type silent drain pipe |
| CN103030938A (en) * | 2012-12-28 | 2013-04-10 | 江苏百安居管业有限公司 | PET drainage pipe fitting and manufacturing method thereof |
| CN103912737A (en) * | 2014-04-11 | 2014-07-09 | 天津中财型材有限责任公司 | Ultra-silence pipe and manufacturing method thereof |
| CN104086853A (en) * | 2014-05-29 | 2014-10-08 | 安徽海纳川塑业科技有限公司 | Noise-reducing muted drainpipe |
| CN107383588A (en) * | 2017-06-26 | 2017-11-24 | 钟建华 | Aging-proof plastic pipe |
| CN108192221A (en) * | 2017-12-29 | 2018-06-22 | 河南中泽新材料股份有限公司 | Flame-resistant high-temperature-resistant reinforced polypropylene mute drainage pipe and its application |
| CN114658927A (en) * | 2022-03-31 | 2022-06-24 | 湖北大洋塑胶有限公司 | Polypropylene drainage riser |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102002970B (en) | 2011-08-17 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ANHUI KANGJIA PLASTIC BUILDING MATERIAL Co.,Ltd. Assignor: HENAN KANGTAI PLASTIC TECHNOLOGY Co.,Ltd. Contract record no.: 2011340000435 Denomination of invention: Silent drain pipe Granted publication date: 20110817 License type: Exclusive License Open date: 20110406 Record date: 20111124 |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 451150 northeast corner of the east section of the people's road and the Shenzhou Road intersection in Xinzheng, Henan Patentee after: HENAN KANGXIANG PLASTIC INDUSTRY SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 451150 northeast corner of the east section of the people's road and the Shenzhou Road intersection in Xinzheng, Henan Patentee before: HENAN KANGTAI PLASTIC TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 451100 northeast corner of the intersection of East Renmin Road and Shenzhou Road, Xinzheng City, Zhengzhou City, Henan Province Patentee after: Kangtai Plastic Technology Group (Zhengzhou) Co.,Ltd. Address before: 451100 northeast corner of the intersection of East Renmin Road and Shenzhou Road, Xinzheng City, Zhengzhou City, Henan Province Patentee before: Zhengzhou Kangtai Plastic Technology Co.,Ltd. |
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Address after: 451100 northeast corner of the intersection of East Renmin Road and Shenzhou Road, Xinzheng City, Zhengzhou City, Henan Province Patentee after: Zhengzhou Kangtai Plastic Technology Co.,Ltd. Address before: 451150 northeast corner of Renmin Road, eastern section of Renmin Road, Henan, Xinzheng Patentee before: HENAN KANGXIANG PLASTIC INDUSTRY SCIENCE & TECHNOLOGY Co.,Ltd. |