CN101633756A - Physical termite-proof high hard sheath material employing and preparation method thereof - Google Patents
Physical termite-proof high hard sheath material employing and preparation method thereof Download PDFInfo
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- CN101633756A CN101633756A CN200910051835A CN200910051835A CN101633756A CN 101633756 A CN101633756 A CN 101633756A CN 200910051835 A CN200910051835 A CN 200910051835A CN 200910051835 A CN200910051835 A CN 200910051835A CN 101633756 A CN101633756 A CN 101633756A
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- high rigidity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/918—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling
- B29C48/9185—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling in the direction of the stream of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Catching Or Destruction (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a physical termite-proof high hard sheath material employing and a preparation method thereof; the physical termite-proof high hard sheath material comprises the following components and raw materials according to the parts by weight: 70-80 parts of ultrahigh molecular weight polyethylene, 20-30 parts of processing modifier, 0.2+/-0.05 part of processing additive, 0.2+/-0.05 part of antioxidant and 3+/-0.5 parts of anti-ultraviolet master batch. The prepared termite-proof sheath material by the preparation method of the invention passes through termite-proof test (colony method) grade 2 and is mainly used to prepare cable sheath material which is used in regions of the south and tropics and regions with many termites and has termite-proof performance requirement.
Description
Technical field
The present invention relates to a kind of physics method termite-proof high hard sheath material employing and preparation method thereof.
Background technology
When cable is used in the south torrid zone and the more area of humid tropics termite, cable jacket should be paid close attention by the problem of biological damage.If the termite-proof performance of the sheath material of cable is bad, termite can gnaw through the cable sheath layer, cable insulation is exposed make moist, and causes insulation resistance to descend single-line to ground fault.More in addition termite continue insulation layer gnawed and cable conductor exposed cause cable line fault.
The termite-proof method of cable generally is divided into chemical method and physics method, and chemical method is that some sterilants such as Niran, heptachlor, Dieldrin-attapulgite mixture, aldrin and chrysanthemum ester class are joined in the cable jacket material.But this method has a lot of drawbacks, cable in the preparation, medicine might evaporate workers'health is produced detrimentally affect, behind the cable laying, in use the medicine in the cable slowly from sheath migration come out environment produced and pollute.In addition, along with after medicine volatilizees from CABLE MATERIALS or move, the termite-proof effect of cable can weaken until forfeiture gradually.The physics method is to extrude the thin overcoat of preventing the ant sheath or extrude one deck hardness height, any surface finish outside original sheath at cable, and telecommunication cable adopts the physical method control termites many both at home and abroad at present.The base material of the sheath material that hardness is high is generally rigid plastics, as the extraordinary polyolefine of semirigid PVC, Ni Long11, nylon 12 and high rigidity (is " moving back deinsectization " as external product Termigon).Wherein, the extraordinary polyolefine itself of nylon and high rigidity does not contain halogen element, environment is not polluted, and be a kind of ep-type material, be the first-selection of the termite-proof sheath material of preparation therefore, and chemical method will be eliminated gradually.
At present, the costing an arm and a leg of Ni Long11, nylon 12, expressing technique is also complicated.Though the extraordinary polyolefin process of high rigidity is simple, this class material mainly relies on import at home, and price is also relatively more expensive.
Summary of the invention
The technical issues that need to address of the present invention are to overcome defective of the prior art, and termite-proof high rigidity polyolefin jacket material of a kind of physics method and preparation method thereof is provided.
The termite-proof high rigidity polyolefin jacket material of physics method of the present invention, adopt to comprise that the raw material of following component and weight part makes:
Ultrahigh molecular weight polyethylene(UHMWPE) 70-80 part
Modifier 20-30 part
0.2 ± 0.05 part of processing aid
0.2 ± 0.05 part in oxidation inhibitor
3 ± 0.5 parts of ultraviolet-resistance masterbatch.
Above-mentioned oxidation inhibitor can be selected from one or more in antioxidant 1010 or the oxidation inhibitor 168, and is preferable, and oxidation inhibitor is 0.1 part of antioxidant 1010,1680.15 parts in oxidation inhibitor.Oxidation inhibitor is 1010 i.e. four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters; Oxidation inhibitor 168 i.e. three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester.
The hardness of described ultrahigh molecular weight polyethylene(UHMWPE) is not less than shore hardness 67D, and molecular weight is greater than 5,000,000.
Described modifier is selected from POE, ethylene propylene copolymer etc.
Described processing aid is selected from metallic soap series lubricant agent such as calcium stearate, Magnesium Stearate and Zinic stearas etc., preferred 0.2 part.
Described ultraviolet-resistance masterbatch is that carrier, content of carbon black are 40%～45% black masterbatch with hardness more than or equal to the polyolefine of 66D preferably, preferred 3 parts.
The preparation method of the termite-proof high rigidity polyolefin jacket material of physics method of the present invention is: be base material with the ultrahigh molecular weight polyethylene(UHMWPE), it is suitably toughness reinforcing to base material to add modifier by weight ratio, add processing aid and improve the materials processing performance, add oxidation inhibitor and ultraviolet-resistance masterbatch, after mixing, through the twin screw extruder extruding pelletization.
Preferable, adopting the twin screw extruder extruding pelletization, the twin screw extruder temperature is set to: 160 ± 5 ℃ in machine barrel I district, 170 ± 5 ℃ in machine barrel II district, 180 ± 5 ℃ in machine barrel III district, 190 ± 5 ℃ in machine barrel IV district, 200 ± 5 ℃ on head and mould.
The termite-proof high rigidity polyolefin jacket material of physics method of the present invention is by 2 grades of termite-proof tests (colony's method).Be mainly used in preparation and use, have the cable jacket material of termite-proof performance requriements in the torrid zone, south and the more area of humid tropics termite.Compare with corresponding product with prior art, the invention has the advantages that: the sheath material hardness of made is higher, every Specifeca tion speeification and corresponding external product are similar, and product cost is relatively inexpensive, the body material wide material sources are easy to get, prepare simplely relatively, termite-proof effect is good, and has avoided the shortcoming by the termite-proof sheath material of chemical process: contaminate environment and termite-proof not persistence.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1
Ultrahigh molecular weight polyethylene(UHMWPE) (molecular weight is 9,000,000), modifier, processing aid, primary antioxidant 1010, auxiliary anti-oxidant 168 and ultraviolet-resistance masterbatch (Cabot black masterbatch 2272), have the prescription as shown in table 1, performance is as shown in table 2.
Table 1
| Material name | Weight part |
| Ultrahigh molecular weight polyethylene(UHMWPE) (molecular weight is 9,000,000) | ??80 |
| Ethylene propylene copolymer | ??20 |
| Magnesium Stearate | ??0.2 |
| Antioxidant 1010 | ??0.1 |
| Antioxidant 168 | ??0.15 |
| Ultraviolet-resistance masterbatch | ??3 |
The preparation method: with ultrahigh molecular weight polyethylene(UHMWPE) (molecular weight is 9,000,000) is base material, adds modifier, processing aid, oxidation inhibitor and ultraviolet-resistance masterbatch by weight ratio, after mixing, through double-screw extruding pelletizing.The twin screw extruder temperature is set to: 160 ± 5 ℃ in machine barrel I district, 170 ± 5 ℃ in machine barrel II district, 180 ± 5 ℃ in machine barrel III district, 190 ± 5 ℃ in machine barrel IV district, 200 ± 5 ℃ on head and mould.
Table 2
| Hardness (Shao Shi D) | ??67 |
| Tensile strength (MPa) | ??29 |
| Elongation at break (%) | ??692 |
| Resisting environmental stress and cracking (1000h) | By |
| Low temperature impact test | -50 ℃ are passed through |
| Termite-proof test (colony's method) | Secondary |
Embodiment 2
Ultrahigh molecular weight polyethylene(UHMWPE) (molecular weight is 6,000,000), modifier, processing aid, primary antioxidant 1010, auxiliary anti-oxidant 168 and ultraviolet-resistance masterbatch (Cabot black masterbatch 2272), concrete prescription is as shown in table 3, the preparation method is with embodiment 1, and performance is as shown in table 4.
Table 3
| Material name | Weight part |
| Ultrahigh molecular weight polyethylene(UHMWPE) (molecular weight is 6,000,000) | ??75 |
| Ethylene propylene copolymer | ??25 |
| Magnesium Stearate | ??0.2 |
| Antioxidant 1010 | ??0.1 |
| Antioxidant 168 | ??0.15 |
| Ultraviolet-resistance masterbatch | ??3 |
Table 4
| Hardness (Shao Shi D) | ??70 |
| Tensile strength (MPa) | ??33.4 |
| Elongation at break (%) | ??648 |
| Resisting environmental stress and cracking (1000h) | By |
| Low temperature impact test | -50 ℃ are passed through |
| Termite-proof test (colony's method) | Secondary |
Embodiment 3
Ultrahigh molecular weight polyethylene(UHMWPE) (molecular weight is 5,000,000), modifier, processing aid, primary antioxidant 1010, auxiliary anti-oxidant 168 and ultraviolet-resistance masterbatch (Cabot black masterbatch 2272), the preparation method is with embodiment 1, concrete prescription is as shown in table 5, and performance is as shown in table 6.
Table 5
| Material name | Weight part |
| Ultrahigh molecular weight polyethylene(UHMWPE) (molecular weight is 5,000,000) | ??70 |
| POE | ??30 |
| Zinic stearas | ??0.2 |
| Antioxidant 1010 | ??0.1 |
| Antioxidant 168 | ??0.15 |
| Ultraviolet-resistance masterbatch | ??3 |
Table 6
| Hardness (Shao Shi D) | ??67 |
| Tensile strength (MPa) | ??33.4 |
| Elongation at break (%) | ??648 |
| Resisting environmental stress and cracking (1000h) | By |
| Low temperature impact test | -50 ℃ are passed through |
| Termite-proof test (colony's method) | Secondary |
Claims (9)
1. termite-proof high rigidity polyolefin jacket material of physics method, adopt to comprise that the raw material of following component and weight part makes:
Ultrahigh molecular weight polyethylene(UHMWPE) 70-80 part
Modifier 20-30 part
0.2 ± 0.05 part of processing aid
0.2 ± 0.05 part in oxidation inhibitor
3 ± 0.5 parts of ultraviolet-resistance masterbatch.
2. the termite-proof high rigidity polyolefin jacket material of physics method according to claim 1 is characterized in that described oxidation inhibitor is selected from one or more in antioxidant 1010 or the oxidation inhibitor 168.
3. the termite-proof high rigidity polyolefin jacket material of physics method according to claim 1 is characterized in that the molecular weight of described ultrahigh molecular weight polyethylene(UHMWPE) is more than or equal to 5,000,000, and the hardness of described ultrahigh molecular weight polyethylene(UHMWPE) is not less than shore hardness 67D.
4. the termite-proof high rigidity polyolefin jacket material of physics method according to claim 1 is characterized in that described modifier is selected from POE, ethylene propylene copolymer etc.
5. the termite-proof high rigidity polyolefin jacket material of physics method according to claim 1 is characterized in that described processing aid is selected from the metallic soap series lubricant agent.
6. as described in the claim 5, the termite-proof high rigidity polyolefin jacket material of physics method is characterized in that described metallic soap series lubricant agent is selected from calcium stearate, Magnesium Stearate or Zinic stearas.
7. the termite-proof high rigidity polyolefin jacket material of physics method according to claim 1 is characterized in that, it is that carrier, content of carbon black are 40%～45% black masterbatch that described ultraviolet-resistance masterbatch is selected from the polyolefine that is not less than 66D with shore hardness.
8. as the preparation method of the termite-proof high rigidity polyolefin jacket material of physics method as described in the arbitrary claim of claim 1-7, comprise the following steps: with the ultrahigh molecular weight polyethylene(UHMWPE) to be base material, add modifier, processing aid, oxidation inhibitor and ultraviolet-resistance masterbatch by weight ratio, after mixing, through the twin screw extruder extruding pelletization.
9. as the preparation method of the termite-proof high rigidity polyolefin jacket material of physics method as described in the claim 8, it is characterized in that, described twin screw extruder temperature is set to: 160 ± 5 ℃ in machine barrel I district, 170 ± 5 ℃ in machine barrel II district, 180 ± 5 ℃ in machine barrel III district, 190 ± 5 ℃ in machine barrel IV district, 200 ± 5 ℃ on head and mould.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100518359A CN101633756B (en) | 2009-05-22 | 2009-05-22 | Physical termite-proof high hard sheath material and preparation method thereof |
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| CN2009100518359A CN101633756B (en) | 2009-05-22 | 2009-05-22 | Physical termite-proof high hard sheath material and preparation method thereof |
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| CN101633756A true CN101633756A (en) | 2010-01-27 |
| CN101633756B CN101633756B (en) | 2012-02-08 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904198A (en) * | 2012-08-16 | 2013-01-30 | 江苏亨通电力电缆有限公司 | Nylon 12 sheath broken hole and cracking repair method of environment-friendly-type termite-prevention cable |
| CN103992539A (en) * | 2014-04-22 | 2014-08-20 | 天长市富信电子有限公司 | Ageing resistant power line sheath material and preparation method thereof |
| CN104311964A (en) * | 2014-10-30 | 2015-01-28 | 安徽电信器材贸易工业有限责任公司 | Wear-resistant communication optical cable jacket pipe special material and preparation method thereof |
| CN105702343A (en) * | 2016-02-03 | 2016-06-22 | 安徽华联电缆集团有限公司 | High temperature resistant and corrosion resistant electric cable |
| CN105985569A (en) * | 2015-03-03 | 2016-10-05 | 镇江市华银仪表电器有限公司 | Waterproof cold-resistant insulating cable material and preparing method thereof |
| CN106046472A (en) * | 2016-05-19 | 2016-10-26 | 安徽省无为县佳和电缆材料有限公司 | Oxidation-resistant cable sheath |
| CN110343320A (en) * | 2019-07-31 | 2019-10-18 | 湖北科普达光电材料有限公司 | One kind moving back deinsectization CABLE MATERIALS |
| CN110628111A (en) * | 2019-09-20 | 2019-12-31 | 安徽滁州德威新材料有限公司 | Physical termite-proof high-hardness polyethylene sheath material and preparation method thereof |
| CN114835965A (en) * | 2022-04-11 | 2022-08-02 | 四川亚大塑料制品有限公司 | Preparation method of ant-proof protective layer and gas pipeline with protective layer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102592738A (en) * | 2012-03-16 | 2012-07-18 | 无锡市曙光电缆有限公司 | Compound semi-conductive rat and white ant preventing ultra-high voltage crosslinked polyethylene insulating power cable |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1236764A1 (en) * | 2001-03-02 | 2002-09-04 | Studer Draht-und Kabelwerk AG | Flame-retardant cable with a protection-shield rodents and/or termites |
| CN100371379C (en) * | 2006-03-28 | 2008-02-27 | 四川大学 | Ultrahigh molecular weight polyethylene composition capable of being extrusion molded and its prepn process |
| CN101434723B (en) * | 2007-11-16 | 2011-05-11 | 上海化工研究院 | Antistatic halogen-free flame-retardant ultra-high molecular weight polyvinyl composition |
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2009
- 2009-05-22 CN CN2009100518359A patent/CN101633756B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904198A (en) * | 2012-08-16 | 2013-01-30 | 江苏亨通电力电缆有限公司 | Nylon 12 sheath broken hole and cracking repair method of environment-friendly-type termite-prevention cable |
| CN102904198B (en) * | 2012-08-16 | 2015-03-04 | 江苏亨通电力电缆有限公司 | Nylon 12 sheath broken hole and cracking repair method of environment-friendly-type termite-prevention cable |
| CN103992539A (en) * | 2014-04-22 | 2014-08-20 | 天长市富信电子有限公司 | Ageing resistant power line sheath material and preparation method thereof |
| CN104311964A (en) * | 2014-10-30 | 2015-01-28 | 安徽电信器材贸易工业有限责任公司 | Wear-resistant communication optical cable jacket pipe special material and preparation method thereof |
| CN105985569A (en) * | 2015-03-03 | 2016-10-05 | 镇江市华银仪表电器有限公司 | Waterproof cold-resistant insulating cable material and preparing method thereof |
| CN105702343A (en) * | 2016-02-03 | 2016-06-22 | 安徽华联电缆集团有限公司 | High temperature resistant and corrosion resistant electric cable |
| CN106046472A (en) * | 2016-05-19 | 2016-10-26 | 安徽省无为县佳和电缆材料有限公司 | Oxidation-resistant cable sheath |
| CN110343320A (en) * | 2019-07-31 | 2019-10-18 | 湖北科普达光电材料有限公司 | One kind moving back deinsectization CABLE MATERIALS |
| CN110628111A (en) * | 2019-09-20 | 2019-12-31 | 安徽滁州德威新材料有限公司 | Physical termite-proof high-hardness polyethylene sheath material and preparation method thereof |
| CN114835965A (en) * | 2022-04-11 | 2022-08-02 | 四川亚大塑料制品有限公司 | Preparation method of ant-proof protective layer and gas pipeline with protective layer |
| CN114835965B (en) * | 2022-04-11 | 2024-05-03 | 四川亚大塑料制品有限公司 | Preparation method of termite-proof protective layer and gas pipeline with protective layer |
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| CN101633756B (en) | 2012-02-08 |
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Address after: 201802 Shanghai City, Jiading District Nanxiang Town Yongle Village No. 271 Patentee after: Shanghai Kaibo cable special material Co., Ltd Address before: 201802 Shanghai City, Jiading District Nanxiang Town Yongle Village No. 271 Patentee before: SHANGHAI KAIBO SPECIAL CABLE FACTORY Co.,Ltd. |