CN111029002A - Cable for ocean platform and production process thereof - Google Patents
Cable for ocean platform and production process thereof Download PDFInfo
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- CN111029002A CN111029002A CN201911371200.7A CN201911371200A CN111029002A CN 111029002 A CN111029002 A CN 111029002A CN 201911371200 A CN201911371200 A CN 201911371200A CN 111029002 A CN111029002 A CN 111029002A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
- H01B7/288—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable using hygroscopic material or material swelling in the presence of liquid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
Abstract
A cable for an ocean platform has the following structure: the inlayer is the conductor, the conductor is formed by a plurality of copper single line transposition, the conductor is equipped with the polytetrafluoroethylene layer outward, the polytetrafluoroethylene layer is equipped with the polypropylene thin layer outward, the polypropylene thin layer is equipped with the yarn layer that blocks water outward, the water blocking layer yarn is equipped with water-soluble thin layer outward, water-soluble thin layer is equipped with the dyeing layer outward, the dyeing layer is equipped with the high density polyethylene thin layer outward, the high density polyethylene thin layer is equipped with the ceramic fiber layer outward, the ceramic fiber layer is equipped with the polyurethane oversheath layer outward. The cable has the characteristics of tensile resistance, corrosion resistance and easiness in inspection and discovery of damaged parts through structural design and material combination.
Description
Technical Field
The invention belongs to the technical field of cable preparation, and particularly relates to a cable suitable for an ocean platform.
Background
The ocean platform is a structure for providing production and living facilities for activities such as drilling, oil production, collection and transportation, observation, navigation, construction and the like at sea. With the country moving to the deep sea, a large number of ocean platforms emerge, and the cable serves as important corollary equipment of the ocean platforms and provides guarantee for stable operation of the ocean platforms. The environment humidity of the ocean platform is extremely high, and the seawater has high corrosivity, so that the tensile property and the corrosion resistance of the cable are ensured.
The water-blocking function of the water-blocking yarn is that the water-blocking yarn fiber main body can be rapidly expanded to form jelly with large volume when meeting water, and the jelly has quite strong water retention capacity and can effectively prevent the growth of water trees, thereby preventing the water from continuously permeating and diffusing and achieving the purpose of water blocking.
Offshore platform steel structure is more, and steel structure forms sharp corner easily under the corruption of sea water, because blowing of wave and sea wind beats, the platform can produce and rock, and the cable can produce the friction with the steel structure of platform like this, and the cable can produce the damage for a long time, makes steam invade the cable, and the cable all is many bundles and ties up together, and the damage point is many leaning on the steel construction one side simultaneously, neglects easily when patrolling and examining.
Disclosure of Invention
Aiming at the problems, the invention provides a cable for an ocean platform and a production process thereof, wherein the cable for the ocean platform has the characteristics of tensile strength, corrosion resistance and easiness in inspection and discovery of damaged parts.
The technical scheme adopted by the invention for solving the technical problems is as follows: a cable for an ocean platform has the following structure: the inlayer is the conductor, the conductor is formed by a plurality of copper single line transposition, the conductor is equipped with the polytetrafluoroethylene layer outward, the polytetrafluoroethylene layer is equipped with the polypropylene thin layer outward, the polypropylene thin layer is equipped with the yarn layer that blocks water outward, the water blocking layer yarn is equipped with water-soluble thin layer outward, water-soluble thin layer is equipped with the dyeing layer outward, the dyeing layer is equipped with the high density polyethylene thin layer outward, the high density polyethylene thin layer is equipped with the ceramic fiber layer outward, the ceramic fiber layer is equipped with the polyurethane oversheath layer outward.
Preferably, the conductor is formed by stranding 10-20 strands of copper single wires with the diameter of 0.5-3 mm.
Preferably, the water-soluble film layer is made of a low-temperature water-soluble polyvinyl alcohol film or a medium-temperature water-soluble polyvinyl alcohol film.
Preferably, the dyeing layer is glass cotton fiber coated with dye powder, hydrosol and dyeing slow-release particles are further arranged in the glass cotton fiber, and the color of the dyeing slow-release particles is the same as that of the dye powder.
Preferably, the materials for preparing the dyeing sustained-release granules are as follows by mass: 20-30 parts of polyvinyl alcohol, 6-15 parts of corn starch powder, 2-5 parts of xanthan gum, 2-5 parts of dye powder and 10101-2 parts of antioxidant;
the preparation method of the dyeing sustained-release granules comprises the following steps: and (3) putting the polyvinyl alcohol, the corn starch, the xanthan gum, the dye powder and the antioxidant 1010 in parts into a stirrer, uniformly stirring, and then granulating by using a granulator to obtain a finished product.
Preferably, the dye powder is: any one of fruit green, carmine and sunset yellow.
The cable production method comprises the following steps:
(1) taking specified number and specification of copper single wires to be stranded to obtain a conductor;
(2) extruding a polytetrafluoroethylene layer outside the conductor prepared in the step 1;
(3) extruding a polypropylene film layer outside the product prepared in the step 2;
(4) wrapping a layer of water-blocking yarn outside the product prepared in the step 3;
(5) wrapping a water-soluble film layer outside the product prepared in the step 4, wrapping a glass cotton fiber layer, spraying a hydrosol layer on the glass cotton fiber, coating the dyeing agent powder and the dyeing slow-release particles, and wrapping a glass cotton fiber layer;
(6) extruding a layer of high-density polyethylene film outside the product prepared in the step 5;
(7) wrapping a ceramic fiber layer outside the product prepared in the step 6;
(8) and (4) extruding and wrapping the polyurethane outer sheath on the product prepared in the step (7) to obtain the finished cable.
When the cable damage, outside water liquid invades, and water can invade the yarn layer that blocks water, and the yarn that at this moment blocks water absorbs water and expands fast, prevents on the one hand that water from continuing to invade, and on the other hand extrudees glass cotton fiber and releases the water of being dyed by the dyeing powder from the wound, and the cable wound will be dyed like this to easily be found, remind the maintainer maintenance of patrolling and examining. The dyeing sustained release particle main body material in the glass cotton fiber is polyvinyl alcohol, and the polyvinyl alcohol can slowly dissolve in water, can continuously release the dyeing agent like this, prevents that the dyeing at wound from being washed away by water or other things, influences the personnel discovery problem of patrolling and examining, and water-soluble film layer can only dissolve that part corresponding to the wound, and the yarn that blocks water can be wrapped up in to remaining undissolved part, makes the yarn that blocks water extrude to the wound after the yarn that blocks water absorbs water inflation, the messenger wound dyeing that can be better like this.
The insulating layer is made of polytetrafluoroethylene which has excellent electrical insulating performance, high heat resistance, outstanding oil resistance, solvent resistance and wear resistance and good moisture resistance and low temperature resistance, the ceramic fiber layer arranged in the cable can improve the tensile strength of the mechanical property of the cable, meanwhile, the glass cotton fiber has excellent heat insulation effect, can protect the water-soluble film layer and the dyeing slow release particles from being damaged by high temperature when the polyurethane outer sheath is extruded, and the polyurethane outer sheath is corrosion-resistant, wear-resistant and has low temperature required by extrusion.
The invention has the beneficial effects that: the cable has the characteristics of tensile resistance, corrosion resistance and easiness in inspection and discovery of damaged parts through structural design and material combination.
Drawings
The invention is further illustrated with reference to the figures and examples.
Fig. 1 is a schematic diagram of a cable construction.
FIG. 2 is a schematic view of the structure of a dyed layer.
In the figure, 1, a copper single wire, 2, a polytetrafluoroethylene layer, 3, a polypropylene film layer, 4, water-blocking yarns, 5, a water-soluble film layer, 6, a dyeing layer, 7, a high-density polyethylene film layer, 8, a ceramic fiber layer, 9, a polyurethane outer sheath layer and 10, dyeing slow-release particles.
Detailed Description
Example 1
In fig. 1 and 2, a cable for an ocean platform is shown as 1 copper single line, 2 polytetrafluoroethylene layer, 3 polypropylene film layer, 4 water-blocking yarn, 5 water-soluble film layer, 6 dyeing layer, 7 high-density polyethylene film layer, 8 ceramic fiber layer, 9 polyurethane outer sheath layer and 10 dyeing slow-release particles. The cable structure does: the inlayer is the conductor, the conductor is formed by a plurality of copper single line transposition, the conductor is equipped with the polytetrafluoroethylene layer outward, the polytetrafluoroethylene layer is equipped with the polypropylene thin layer outward, the polypropylene thin layer is equipped with the yarn layer that blocks water outward, the water blocking layer yarn is equipped with water-soluble thin layer outward, water-soluble thin layer is equipped with the dyeing layer outward, the dyeing layer is equipped with the high density polyethylene thin layer outward, the high density polyethylene thin layer is equipped with the ceramic fiber layer outward, the ceramic fiber layer is equipped with the polyurethane oversheath layer outward.
In this example, the conductor is formed by stranding 19 copper single wires with a diameter of 2 mm.
In this example, the water-soluble film layer is made of a low-temperature water-soluble polyvinyl alcohol film, and the manufacturer is san yuan feng water-soluble film limited company, Youna.
In this example, the dyeing layer is glass wool fiber coated with fruit green, hydrosol and dyeing sustained-release particles are further arranged in the glass wool fiber, and the color of the dyeing sustained-release particles is the same as that of the dyeing agent powder.
Preferably, the materials for preparing the dyeing sustained-release granules are as follows by mass: 25 parts of polyvinyl alcohol, 8 parts of corn starch powder, 3 parts of xanthan gum, 3 parts of fruit green powder and 10101 parts of antioxidant;
the preparation method of the dyeing sustained-release granules comprises the following steps: and (3) putting the polyvinyl alcohol, the corn starch, the xanthan gum, the fruit green powder and the antioxidant 1010 in parts into a stirrer, uniformly stirring, and then granulating by using a granulator to obtain a finished product.
The cable production method comprises the following steps:
(1) taking specified number and specification of copper single wires to be stranded to obtain a conductor;
(2) extruding a polytetrafluoroethylene layer outside the conductor prepared in the step 1;
(3) extruding a polypropylene film layer outside the product prepared in the step 2;
(4) wrapping a layer of water-blocking yarn outside the product prepared in the step 3;
(5) wrapping a water-soluble film layer outside the product prepared in the step 4, wrapping a glass cotton fiber layer, spraying a hydrosol layer on the glass cotton fiber, coating the dyeing agent powder and the dyeing slow-release particles, and wrapping a glass cotton fiber layer;
(6) extruding a layer of high-density polyethylene film outside the product prepared in the step 5;
(7) wrapping a ceramic fiber layer outside the product prepared in the step 6;
(8) and (4) extruding and wrapping the polyurethane outer sheath on the product prepared in the step (7) to obtain the finished cable.
Example 2
Fig. 1 and 2 are a cable for an ocean platform, wherein the cable comprises 1 copper single line, 2 polytetrafluoroethylene layer, 3 polypropylene film layer, 4 water-blocking yarn, 5 water-soluble film layer, 6 dyeing layer, 7 high-density polyethylene film layer, 8 ceramic fiber layer, 9 polyurethane outer sheath layer and 10 dyeing slow-release particles. The cable structure does: the inlayer is the conductor, the conductor is formed by a plurality of copper single line transposition, the conductor is equipped with the polytetrafluoroethylene layer outward, the polytetrafluoroethylene layer is equipped with the polypropylene thin layer outward, the polypropylene thin layer is equipped with the yarn layer that blocks water outward, the water blocking layer yarn is equipped with water-soluble thin layer outward, water-soluble thin layer is equipped with the dyeing layer outward, the dyeing layer is equipped with the high density polyethylene thin layer outward, the high density polyethylene thin layer is equipped with the ceramic fiber layer outward, the ceramic fiber layer is equipped with the polyurethane oversheath layer outward.
In this example, the conductor is formed by stranding 19 copper single wires with a diameter of 2.5 mm.
In this example, the water-soluble film layer is made of medium-temperature water-soluble polyvinyl alcohol film, and the manufacturer is the water-soluble film limited of san yuan feng, Yong' an city.
Preferably, the dyeing layer is glass cotton fiber coated with carmine, hydrosol and dyeing slow-release particles are further arranged in the glass cotton fiber, and the color of the dyeing slow-release particles is the same as that of the dyeing agent powder.
Preferably, the materials for preparing the dyeing sustained-release granules are as follows by mass: 20-30 parts of polyvinyl alcohol, 6-15 parts of corn starch, 2-5 parts of xanthan gum, 2-5 parts of carmine powder and 10101-2 parts of antioxidant;
the preparation method of the dyeing sustained-release granules comprises the following steps: and (3) putting the polyvinyl alcohol, the corn starch, the xanthan gum, the carmine powder and the antioxidant 1010 in the parts into a stirrer, uniformly stirring, and then granulating by a granulator to obtain a finished product.
Preferably, the dye powder is: any one of fruit green, carmine and sunset yellow.
The cable production method comprises the following steps:
(1) taking specified number and specification of copper single wires to be stranded to obtain a conductor;
(2) extruding a polytetrafluoroethylene layer outside the conductor prepared in the step 1;
(3) extruding a polypropylene film layer outside the product prepared in the step 2;
(4) wrapping a layer of water-blocking yarn outside the product prepared in the step 3;
(5) wrapping a water-soluble film layer outside the product prepared in the step 4, wrapping a glass cotton fiber layer, spraying a hydrosol layer on the glass cotton fiber, coating the dyeing agent powder and the dyeing slow-release particles, and wrapping a glass cotton fiber layer;
(6) extruding a layer of high-density polyethylene film outside the product prepared in the step 5;
(7) wrapping a ceramic fiber layer outside the product prepared in the step 6;
(8) and (4) extruding and wrapping the polyurethane outer sheath on the product prepared in the step (7) to obtain the finished cable.
Claims (7)
1. A cable for an ocean platform is characterized in that: the cable structure does: the inlayer is the conductor, the conductor is formed by a plurality of copper single line transposition, the conductor is equipped with the polytetrafluoroethylene layer outward, the polytetrafluoroethylene layer is equipped with the polypropylene thin layer outward, the polypropylene thin layer is equipped with the yarn layer that blocks water outward, the water blocking layer yarn is equipped with water-soluble thin layer outward, water-soluble thin layer is equipped with the dyeing layer outward, the dyeing layer is equipped with the high density polyethylene thin layer outward, the high density polyethylene thin layer is equipped with the ceramic fiber layer outward, the ceramic fiber layer is equipped with the polyurethane oversheath layer outward.
2. The cable for ocean platforms according to claim 1, wherein: the conductor is formed by twisting 10-20 strands of copper single wires with the diameter of 0.5-3 mm.
3. The cable for ocean platforms according to claim 1, wherein: the water-soluble film layer is made of a low-temperature water-soluble polyvinyl alcohol film or a medium-temperature water-soluble polyvinyl alcohol film.
4. The cable for ocean platforms according to claim 1, wherein: the dyeing layer is glass cotton fiber coated with dye powder, hydrosol and dyeing slow-release particles are further arranged in the glass cotton fiber, and the color of the dyeing slow-release particles is the same as that of the dye powder.
5. The cable for ocean platforms according to claim 4, wherein: the materials used for preparing the dyeing sustained-release granules are as follows by mass: 20-30 parts of polyvinyl alcohol, 6-15 parts of corn starch powder, 2-5 parts of xanthan gum, 2-5 parts of dye powder and 10101-2 parts of antioxidant;
the preparation method of the dyeing sustained-release granules comprises the following steps: and (3) putting the polyvinyl alcohol, the corn starch, the xanthan gum, the dye powder and the antioxidant 1010 in parts into a stirrer, uniformly stirring, and then granulating by using a granulator to obtain a finished product.
6. A cable for an offshore platform according to claim 4 or 5, wherein: the dye powder is as follows: any one of fruit green, carmine and sunset yellow.
7. A production process of a cable for an ocean platform is characterized by comprising the following steps: the production method comprises the following steps:
(1) taking specified number and specification of copper single wires to be stranded to obtain a conductor;
(2) extruding a polytetrafluoroethylene layer outside the conductor prepared in the step 1;
(3) extruding a polypropylene film layer outside the product prepared in the step 2;
(4) wrapping a layer of water-blocking yarn outside the product prepared in the step 3;
(5) wrapping a water-soluble film layer outside the product prepared in the step 4, wrapping a glass cotton fiber layer, spraying a hydrosol layer on the glass cotton fiber, coating the dyeing agent powder and the dyeing slow-release particles, and wrapping a glass cotton fiber layer;
(6) extruding a layer of high-density polyethylene film outside the product prepared in the step 5;
(7) wrapping a ceramic fiber layer outside the product prepared in the step 6;
(8) and (4) extruding and wrapping the polyurethane outer sheath on the product prepared in the step (7) to obtain the finished cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911371200.7A CN111029002B (en) | 2019-12-26 | 2019-12-26 | Cable for ocean platform and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911371200.7A CN111029002B (en) | 2019-12-26 | 2019-12-26 | Cable for ocean platform and production process thereof |
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| Publication Number | Publication Date |
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| CN111029002A true CN111029002A (en) | 2020-04-17 |
| CN111029002B CN111029002B (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911371200.7A Active CN111029002B (en) | 2019-12-26 | 2019-12-26 | Cable for ocean platform and production process thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111863334A (en) * | 2020-08-01 | 2020-10-30 | 江苏江扬特种电缆有限公司 | High-safety communication cable and using method thereof |
| CN111863335A (en) * | 2020-08-04 | 2020-10-30 | 江苏江扬特种电缆有限公司 | Novel power cable |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203503359U (en) * | 2013-11-01 | 2014-03-26 | 上海矿用电缆厂有限公司 | Long delay dyeing cable used for mine |
| CN204348408U (en) * | 2015-01-27 | 2015-05-20 | 江西吉恩重工有限公司 | Intelligent positioning type marine power cable |
| CN206210440U (en) * | 2016-08-31 | 2017-05-31 | 安徽宏源特种电缆股份有限公司 | A kind of anode composite cable |
-
2019
- 2019-12-26 CN CN201911371200.7A patent/CN111029002B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203503359U (en) * | 2013-11-01 | 2014-03-26 | 上海矿用电缆厂有限公司 | Long delay dyeing cable used for mine |
| CN204348408U (en) * | 2015-01-27 | 2015-05-20 | 江西吉恩重工有限公司 | Intelligent positioning type marine power cable |
| CN206210440U (en) * | 2016-08-31 | 2017-05-31 | 安徽宏源特种电缆股份有限公司 | A kind of anode composite cable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111863334A (en) * | 2020-08-01 | 2020-10-30 | 江苏江扬特种电缆有限公司 | High-safety communication cable and using method thereof |
| CN111863335A (en) * | 2020-08-04 | 2020-10-30 | 江苏江扬特种电缆有限公司 | Novel power cable |
| CN111863335B (en) * | 2020-08-04 | 2021-06-18 | 江苏江扬特种电缆有限公司 | Power cable |
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| CN111029002B (en) | 2020-08-18 |
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Address after: 225009 No. 80 Gaoshu North Road, Hangjiang District, Yangzhou City, Jiangsu Province Applicant after: JIANGSU JIANGYANG SPECIAL CABLE Co.,Ltd. Address before: 225009 Jiangyang cable new building, gaoshubei Road, Hanjiang District, Yangzhou City, Jiangsu Province Applicant before: JIANGSU JIANGYANG SPECIAL CABLE Co.,Ltd. |
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