CN204004832U - A kind of novel plastic hot-water line - Google Patents
A kind of novel plastic hot-water line Download PDFInfo
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- CN204004832U CN204004832U CN201420455371.4U CN201420455371U CN204004832U CN 204004832 U CN204004832 U CN 204004832U CN 201420455371 U CN201420455371 U CN 201420455371U CN 204004832 U CN204004832 U CN 204004832U
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- Prior art keywords
- layer
- water line
- thermal insulation
- hot
- ppr
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 229920003023 plastic Polymers 0.000 title claims abstract description 40
- 239000004033 plastic Substances 0.000 title claims abstract description 40
- 238000009413 insulation Methods 0.000 claims abstract description 31
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 21
- 230000002265 prevention Effects 0.000 claims abstract description 21
- 230000003647 oxidation Effects 0.000 claims abstract description 20
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 9
- 210000003462 vein Anatomy 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 14
- 239000001301 oxygen Substances 0.000 abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 abstract description 14
- 238000004140 cleaning Methods 0.000 abstract description 8
- 230000003115 biocidal effect Effects 0.000 abstract description 6
- 150000001875 compounds Chemical group 0.000 abstract description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000004500 asepsis Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920001748 polybutylene Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 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 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- Thermal Insulation (AREA)
Abstract
The utility model provides a kind of novel plastic hot-water line, the body that comprises hollow, the upper and lower surface of described body is two parallel planes, the two sides, left and right connecting between described two planes is the arc shaped surface extending out, described body comprises interior PPR layer, described interior PPR layer inside is provided with PE-RT layer, between described PE-RT layer and described interior PPR layer, be provided with oxidation prevention layer, described interior PPR layer outside is provided with expansion buffer layer, described expansion buffer layer outside is provided with enhancement layer, described enhancement layer outside is provided with thermal insulation layer, and described thermal insulation layer outside is provided with outer PPR layer.Hot-water line of the present utility model, multi-layer compound structure, makes hot-water line of the present utility model have the plastics pipe for hot water application of good heat-resisting quantity, antibiotic cleaning performance, oxygen resistance, thermal insulation property.
Description
Technical field
The utility model relates to a kind of plastic water pipe, is specifically related to a kind of novel plastic hot-water line.
Background technique
Plastic tube is compared with pipelines such as traditional cast iron tube, Coating Steel Pipe, cement pipe, there is energy-saving material-saving, environmental protection, high-strength light, corrosion-resistant, inner wall smooth non-scaling, construction and the advantage such as maintenance is easy, long service life, be widely used in building industry, municipal administration, industry and the agriculture fields such as building water supply and drainage, town and country plumbing, gas, electric power and cable sheath, industrial fluids conveying, agricultural irrigation.Plastic pipe is an important branch in the numerous constituent elements of chemical building material, from using the difference classification of chemical materials, plastic pipe can be divided into polyethylene (PE) pipe, PVC=polyvinyl chloride (PVC) pipe, polypropylene (PP) pipe, ABS pipe, polybutylene (PB) pipe etc.
Water pipe divides metal tube, composite pipe and plastic tube.Metal tube is mainly divided into copper tube and stainless steel waterpipe, and metal tube has safety, health, the various features such as durable, be the optimal water pipe of house ornamentation frock, but its price comparison is expensive.Composite pipe Typical Representative has aluminium-plastic pipe, but due to its problem of expanding with heat and contract with cold, is eliminated gradually.Plastic tube, due to safety, many reasons such as nontoxic, easy for installation, cheap, becomes the most frequently used water pipe of house ornamentation.Water pipe property indices is all tighter, is particularly used in above Drinking Water, needs pipeline to have nontoxic radiationless, can not contain the harmful matters such as heavy metal, and corrosion resistant ability will be got well, and the requirement such as will grow working life.
The moisture of water pipe supply is hot water and cold water and normal-temperature water etc., for hot-water line, just must its resistance to heat of body will get well, and also has heat insulating ability, antibiotic property well simultaneously.But simultaneously plastic tube all has the oxygen of oozing, and along with the rising of temperature, the oxygen feature of oozing of plastic tube is outstanding all the more.Especially for heat supply water pipe, this will cause the oxygen content in the hot water in pipeline to increase along with the rising of temperature.When hot water temperature is during higher than 40 ℃, oxygen infiltration amount can be greater than 0.1mg/ (L.day), now the metal device in water system is produced to serious corrosion.Therefore, the oxygen barrier of tubing is also needed to pay attention to some extent.
In numerous plastic tubes, because PP is nontoxic, tasteless, can in the boiling water of 100 ℃, soak indeformable, do not damage, common acid, alkali organic solvent work hardly to it, and its thermal conductivity is lower, therefore, are relatively applicable to hot-water line.But PP also has the oxygen of oozing, simultaneously self there is no self cleaning capacity, long-term use can become water pollution once again thing gathering with bacterial growth ground, serious threat health.
Therefore, in order to meet the demand in market, for socioeconomic development, also, in order to protect the healthy of people self, be necessary, develop a kind of resistant to elevated temperatures novel plastic hot-water line with self cleaning capacity (antibiotic cleaning ability) and oxygen resistance.
Summary of the invention
Goal of the invention: the purpose of this utility model is in order to solve the deficiencies in the prior art, and a kind of novel plastic hot-water line is provided.
Technological scheme: in order to realize above object, the utility model by the following technical solutions.
A kind of novel plastic hot-water line, the body that comprises hollow, the upper and lower surface of described body is two parallel planes, the two sides, left and right connecting between described two planes is the arc shaped surface extending out, described body comprises interior PPR layer, described interior PPR layer inside is provided with PE-RT layer, between described PE-RT layer and described interior PPR layer, be provided with oxidation prevention layer, described interior PPR layer outside is provided with expansion buffer layer, described expansion buffer layer outside is provided with enhancement layer, described enhancement layer outside is provided with thermal insulation layer, and described thermal insulation layer outside is provided with outer PPR layer.Hot-water line of the present utility model, the upper and lower surface of body is two parallel planes, the lifting surface area of plane is large, so comparatively speaking, its bearing capacity can increase, simultaneously, tubing is more prone to place, the shortcoming of having avoided cylindrical tubing easily to roll, the two sides, left and right of body is the arc shaped surface extending out, the bending deflection of arc shaped surface is larger, make like this elasticity of body higher, body is provided with PE-RT layer, it is heat-proof polythene layer, there is good pliability, high thermal conductivity, inertia, resistance to pressure, also there is self cleaning capacity simultaneously, can prevent growing of bacterium, made up the deficiency of PPR tubing, be provided with oxidation prevention layer, increased the oxygen resistance of tubing, can permeate by anti-block, be provided with expansion buffer layer, elasticity and the deformability of tubing have been strengthened, the anti-pressure ability of tubing is strengthened greatly, be provided with enhancement layer, improved the intensity of tubing, be provided with thermal insulation layer, improved the heat insulating ability of tubing, the temperature that can keep the current of circulation in body, prevent heat loss, multi-layer compound structure, make hot-water line of the present utility model there is good heat-resisting quantity, antibiotic cleaning performance, oxygen resistance, the plastics pipe for hot water application of thermal insulation property.
Described oxidation prevention layer is ethylene-vinyl alcohol copolymer, and the thickness of described oxidation prevention layer is 0.2-0.4mm.Ethylene-vinyl alcohol copolymer has good oxygen resistance, and compared to other some aluminium-plastic composite pipes, plastic aluminum steady-state tube, its price is lower simultaneously, and cost is lower, and ethylene-vinyl alcohol copolymer also can not affect the performance of tubing itself simultaneously.
Described expansion buffer layer is SBS rubber layer, and the thickness of described expansion buffer layer is 0.6-0.8mm.SBS has splendid expansibility, increases expansibility, elasticity and impact resistance that SBS rubber layer can well improve tubing.
Described enhancement layer is layer of polyester fiber, and the thickness of described enhancement layer is 0.8-1.2mm.Polyester fibre is good reinforcing material, and environment-protecting asepsis, intensity are high, high temperature resistant, can well further strengthen the intensity of tubing.
Described thermal insulation layer is rubber-plastic sponge, and the thickness of described thermal insulation layer is 0.8-1.2mm.Rubber-plastic sponge is a kind of good environment protecting thermal insulating material, also has good elasticity, thereby can reduce to greatest extent hot water pipeline vibration and resonance in use, has good in property, toughness and flame retardant property.
The inner wall smooth of described body, the outer wall of described body is provided with anti-slip veins.Inner wall smooth can prevent from stopping up so that flow of hot water is clear and coherent smooth, and outer wall is provided with anti-slip veins can be anti-skidding, is convenient to transportation simultaneously, uses, and also prevents to a certain extent scratch.
Beneficial effect: the novel plastic hot-water line that the utility model provides compared with prior art, has the following advantages:
1, hot-water line of the present utility model, multi-layer compound structure, makes hot-water line of the present utility model have the plastics pipe for hot water application of good heat-resisting quantity, antibiotic cleaning performance, oxygen resistance, thermal insulation property;
2, hot-water line of the present utility model, adopts ethylene-vinyl alcohol copolymer as oxidation prevention layer layer, has improved greatly the oxygen barrier of tubing, adopts SBS rubber as expansion buffer layer, has also further improved the shock resistance of tubing; Adopt rubber-plastic sponge as thermal insulation layer, when having improved the heat insulating ability of tubing, also improved the features such as its flame retarding, elasticity;
3, hot-water line of the present utility model, the material that tubing is used is all asepsis environment-protecting material, makes the environmentally safe of tubing own.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment body;
Fig. 2 is connection diagram between layers in the utility model embodiment body;
In figure: PPR layer, 5-expansion buffer layer, 6-enhancement layer, 7-thermal insulation layer, the outer PPR layer of 8-in 1-body, 2-PE-RT layer, 3-oxidation prevention layer, 4-.
Embodiment
Below in conjunction with specific embodiment, the utility model is elaborated; but illustrate that protection domain of the present utility model is not limited to the concrete scope of the present embodiment simultaneously; embodiment based in the utility model; those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
embodiment 1
As shown in attached Fig. 1 and 2:
A kind of novel plastic hot-water line, the body 1 that comprises hollow, the upper and lower surface of described body 1 is two parallel planes, the two sides, left and right connecting between described two planes is the arc shaped surface extending out, described body 1 comprises interior PPR layer 4, described interior PPR layer 4 inside are provided with PE-RT layer 2, between described PE-RT layer 2 and described interior PPR layer 4, be provided with oxidation prevention layer 3, described interior PPR layer 4 outside are provided with expansion buffer layer 5, described expansion buffer layer 5 outside are provided with enhancement layer 6, described enhancement layer 6 outsides are provided with thermal insulation layer 7, and described thermal insulation layer 7 outsides are provided with outer PPR layer 8.
Described oxidation prevention layer 3 is ethylene-vinyl alcohol copolymer, and the thickness of described oxidation prevention layer 3 is 0.2mm.
Described expansion buffer layer 5 is SBS rubber layer, and the thickness of described expansion buffer layer 5 is 0.6mm.
Described enhancement layer 6 is layer of polyester fiber, and the thickness of described enhancement layer 6 is 0.8mm.
Described thermal insulation layer 7 is rubber-plastic sponge, and the thickness of described thermal insulation layer 7 is 0.8mm.
The inner wall smooth of described body 1, the outer wall of described body 1 is provided with anti-slip veins.(in Fig. 1, managing very anti-slip veins of waveform curve above outer wall).
embodiment 2
As shown in attached Fig. 1 and 2:
A kind of novel plastic hot-water line, the body 1 that comprises hollow, the upper and lower surface of described body 1 is two parallel planes, the two sides, left and right connecting between described two planes is the arc shaped surface extending out, described body 1 comprises interior PPR layer 4, described interior PPR layer 4 inside are provided with PE-RT layer 2, between described PE-RT layer 2 and described interior PPR layer 4, be provided with oxidation prevention layer 3, described interior PPR layer 4 outside are provided with expansion buffer layer 5, described expansion buffer layer 5 outside are provided with enhancement layer 6, described enhancement layer 6 outsides are provided with thermal insulation layer 7, and described thermal insulation layer 7 outsides are provided with outer PPR layer 8.
Described oxidation prevention layer 3 is ethylene-vinyl alcohol copolymer, and the thickness of described oxidation prevention layer 3 is 0.3mm.
Described expansion buffer layer 5 is SBS rubber layer, and the thickness of described expansion buffer layer 5 is 0.7mm.
Described enhancement layer 6 is layer of polyester fiber, and the thickness of described enhancement layer 6 is 1.0mm.
Described thermal insulation layer 7 is rubber-plastic sponge, and the thickness of described thermal insulation layer 7 is 1.0mm.
The inner wall smooth of described body 1, the outer wall of described body 1 is provided with anti-slip veins.(in Fig. 1, managing very anti-slip veins of waveform curve above outer wall).
embodiment 3
As shown in attached Fig. 1 and 2:
A kind of novel plastic hot-water line, the body 1 that comprises hollow, the upper and lower surface of described body 1 is two parallel planes, the two sides, left and right connecting between described two planes is the arc shaped surface extending out, described body 1 comprises interior PPR layer 4, described interior PPR layer 4 inside are provided with PE-RT layer 2, between described PE-RT layer 2 and described interior PPR layer 4, be provided with oxidation prevention layer 3, described interior PPR layer 4 outside are provided with expansion buffer layer 5, described expansion buffer layer 5 outside are provided with enhancement layer 6, described enhancement layer 6 outsides are provided with thermal insulation layer 7, and described thermal insulation layer 7 outsides are provided with outer PPR layer 8.
Described oxidation prevention layer 3 is ethylene-vinyl alcohol copolymer, and the thickness of described oxidation prevention layer 3 is 0.4mm.
Described expansion buffer layer 5 is SBS rubber layer, and the thickness of described expansion buffer layer 5 is 0.8mm.
Described enhancement layer 6 is layer of polyester fiber, and the thickness of described enhancement layer 6 is 1.2mm.
Described thermal insulation layer 7 is rubber-plastic sponge, and the thickness of described thermal insulation layer 7 is 1.2mm.
The inner wall smooth of described body 1, the outer wall of described body 1 is provided with anti-slip veins.(in Fig. 1, managing very anti-slip veins of waveform curve above outer wall).
In above-described embodiment, the rubber-plastic sponge that the thermal insulation layer 7 of tubing adopts can reasonably be selected arbitrarily any one in PEVA or NBR foaming thermal-insulating.
In above-described embodiment, the oxidation prevention layer 3 of tubing adopts ethylene-vinyl alcohol copolymer, and the content of therein ethylene is 30-40%.
In above-described embodiment, each layer carries out compound tense, and can to adopt EVA resin to carry out bonding.
The hot-water line of above-described embodiment, have additional PE-RT layer 2, oxidation prevention layer 3, expansion buffer layer 5, enhancement layer 6, thermal insulation layer 7, greatly improved heat resistance, antibiotic cleaning ability, oxygen resistance, shock-absorbing capacity, shock resistance, intensity and the thermal insulation property of hot-water line, making tubing is the environment protection type hot-water line of a multi-functional function admirable.
The setting of above-described embodiment middle tube body shape, improves the elasticity of tubing and stability, bearing capacity greatly, and the sectional shape of body is similar to bulging sectional shape.
Hot-water line of the present utility model, can be for general home-use hot water supply, pollution-free to human body.
Above-described embodiment is only explanation technical conceive of the present utility model and feature, its objective is to allow to be familiar with these those skilled in the art and can to understand content of the present utility model enforcement according to this, can not limit protection domain of the present utility model with this.All equivalents of having done according to the utility model Spirit Essence or modification, within all should being encompassed in protection domain of the present utility model.
Claims (6)
1. a novel plastic hot-water line, it is characterized in that: the body (1) that comprises hollow, the upper and lower surface of described body (1) is two parallel planes, the two sides, left and right connecting between described two planes is the arc shaped surface extending out, described body (1) comprises interior PPR layer (4), described interior PPR layer (4) inside is provided with PE-RT layer (2), between described PE-RT layer (2) and described interior PPR layer (4), be provided with oxidation prevention layer (3), described interior PPR layer (4) outside is provided with expansion buffer layer (5), described expansion buffer layer (5) outside is provided with enhancement layer (6), described enhancement layer (6) outside is provided with thermal insulation layer (7), described thermal insulation layer (7) outside is provided with outer PPR layer (8).
2. novel plastic hot-water line according to claim 1, is characterized in that: described oxidation prevention layer (3) is ethylene-vinyl alcohol copolymer, and the thickness of described oxidation prevention layer (3) is 0.2-0.4mm.
3. novel plastic hot-water line according to claim 1, is characterized in that: described expansion buffer layer (5) is SBS rubber layer, and the thickness of described expansion buffer layer (5) is 0.6-0.8mm.
4. novel plastic hot-water line according to claim 1, is characterized in that: described enhancement layer (6) is layer of polyester fiber, and the thickness of described enhancement layer (6) is 0.8-1.2mm.
5. novel plastic hot-water line according to claim 1, is characterized in that: described thermal insulation layer (7) is rubber-plastic sponge, and the thickness of described thermal insulation layer (7) is 0.8-1.2mm.
6. novel plastic hot-water line according to claim 1, is characterized in that: the inner wall smooth of described body (1), the outer wall of described body (1) is provided with anti-slip veins.
Priority Applications (1)
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CN201420455371.4U CN204004832U (en) | 2014-08-13 | 2014-08-13 | A kind of novel plastic hot-water line |
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CN201420455371.4U CN204004832U (en) | 2014-08-13 | 2014-08-13 | A kind of novel plastic hot-water line |
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CN204004832U true CN204004832U (en) | 2014-12-10 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105179820A (en) * | 2015-09-17 | 2015-12-23 | 苏州新区佳合塑胶有限公司 | Composite tube |
CN105508755A (en) * | 2016-01-18 | 2016-04-20 | 昆山巴城德隆塑料有限公司 | Sound absorption and noise reduction multi-layer blow-off pipe |
CN111959069A (en) * | 2020-01-07 | 2020-11-20 | 中裕软管科技股份有限公司 | Heat-resistant water belt and preparation method thereof |
-
2014
- 2014-08-13 CN CN201420455371.4U patent/CN204004832U/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105179820A (en) * | 2015-09-17 | 2015-12-23 | 苏州新区佳合塑胶有限公司 | Composite tube |
CN105508755A (en) * | 2016-01-18 | 2016-04-20 | 昆山巴城德隆塑料有限公司 | Sound absorption and noise reduction multi-layer blow-off pipe |
CN111959069A (en) * | 2020-01-07 | 2020-11-20 | 中裕软管科技股份有限公司 | Heat-resistant water belt and preparation method thereof |
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Granted publication date: 20141210 |