CN109637705B - Weak current cable that security performance is high - Google Patents

Weak current cable that security performance is high Download PDF

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Publication number
CN109637705B
CN109637705B CN201811314700.2A CN201811314700A CN109637705B CN 109637705 B CN109637705 B CN 109637705B CN 201811314700 A CN201811314700 A CN 201811314700A CN 109637705 B CN109637705 B CN 109637705B
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China
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layer
weak current
current cable
fixedly connected
inner ring
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CN201811314700.2A
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CN109637705A (en
Inventor
赵咪咪
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Anhui Hongjie Cable Co., Ltd
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Anhui Hongjie Cable Co Ltd
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Priority to CN201811314700.2A priority Critical patent/CN109637705B/en
Publication of CN109637705A publication Critical patent/CN109637705A/en
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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
    • 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
    • H01B7/0208—Cables with several layers of insulating material
    • H01B7/0225—Three or more layers
    • 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
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; 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
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • H01B7/1825—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of a high tensile strength core
    • 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
    • H01B7/1875—Multi-layer sheaths
    • 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
    • H01B7/1895—Internal space filling-up means
    • 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
    • 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
    • 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
    • H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
    • 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
    • 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
    • H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
    • 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
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • 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
    • H01B7/40—Insulated conductors or cables characterised by their form with arrangements for facilitating mounting or securing

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  • Insulated Conductors (AREA)

Abstract

The invention discloses a weak current cable with high safety performance, which comprises a weak current cable body, wherein the weak current cable body sequentially comprises an anti-abrasion protective sleeve layer, a first shielding layer, a fireproof layer, a damp-proof layer, an antistatic layer, an insulating layer, a tin paper layer and a filling layer from outside to inside, the inside of the filling layer is fixedly connected with protective rubber sleeve layers which are circularly arranged, the inner ring of each protective rubber sleeve layer is fixedly connected with a second shielding layer, the inner ring of each second shielding layer is fixedly connected with an anticorrosive layer, and the inner ring of each anticorrosive layer is wrapped with a conductive copper wire body. This weak current cable that security performance is high can carry out effectual protection to outside static, has avoided this weak current cable phenomenon ageing and damage to appear, and the security performance is high, and thermal stability can be good, has certain wear resistance, the effectual wearing and tearing of having avoided this weak current cable, the effectual fire prevention and the humidity resistance who strengthens this weak current cable, the effectual life who guarantees the weak current cable.

Description

Weak current cable that security performance is high
Technical Field
The invention relates to the technical field of weak current cables, in particular to a weak current cable with high safety performance.
Background
The cable is a general name of articles such as optical cables, electric cables and the like, the cable has a plurality of purposes and is mainly used for controlling installation, connecting equipment, transmitting electric power and the like, the weak current cable is used for security communication, electric equipment and related weak current transmission purposes, the electric wire and the electric cable are not strictly limited, products with few cores, small product diameter and simple structure are generally called electric wires, uninsulated products are called bare wires, other products are called electric cables, the conductor with larger cross section area is called large electric wires, the conductor with smaller cross section area is called small electric wires, the insulated electric wires are also called distributing electric wires, and the weak current cable is one of common cables.
After the existing weak current cable is used for a long time, the weak current cable is easy to wear and age, external interference signals and static electricity easily influence the normal use of the weak current cable, the thermal stability is poor, certain danger exists, and the service life of the weak current cable is seriously influenced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a weak current cable with high safety performance, and solves the problems of low safety performance and poor thermal stability of the conventional weak current cable.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a weak current cable that security performance is high, includes the weak current cable body, the weak current cable body is from outer to interior abrasionproof restrictive coating, first shielding layer, flame retardant coating, dampproof course, antistatic layer, insulating layer, tin paper layer and the filling layer of including in proper order, the inside fixedly connected with of filling layer is the protection gum cover layer that circular form was arranged, every the equal fixedly connected with second shielding layer of inner circle of protection gum cover layer, every the equal fixedly connected with anticorrosive coating of inner circle of second shielding layer, every the equal cladding of inner circle of anticorrosive coating has the electrically conductive copper silk body.
The inner circle of abrasionproof restrictive coating and the outer lane fixed connection of first shielding layer, the inner circle of first shielding layer and the outer lane fixed connection of flame retardant coating, the outer lane fixed connection of the inner circle of flame retardant coating and moisture barrier, the inner circle of moisture barrier and the outer lane fixed connection of antistatic layer, the inner circle of antistatic layer and the outer lane fixed connection on tin paper layer, the outer lane fixed connection of the inner circle of tin paper layer and filling layer.
Preferably, the outer surface of the anti-abrasion sheath layer is provided with anti-slip grooves which are circularly arranged, and the number of the anti-slip grooves is at least four.
Preferably, the number of the protective rubber sleeve layers is at least five, the reinforcing rib belts are fixedly connected to the inner parts of the filling layers, and the reinforcing rib belts are located between the five protective rubber sleeve layers.
Preferably, the inner ring of the wear-resistant sheath layer is circular, and the section of the protective rubber sleeve layer is circular.
Preferably, the thickness value of abrasionproof restrictive coating is between 0.5mm-0.7mm, the thickness value of first shielding layer is between 0.2mm-0.3mm, the thickness value of flame retardant coating is between 0.2mm-0.3mm, the thickness value of dampproof course is between 0.2mm-0.3mm, the thickness value of antistatic layer is between 0.1mm-0.2mm, the thickness value of insulating layer is between 0.2mm-0.3mm, the thickness value of tinfoil layer is between 0.1mm-0.2 mm.
Preferably, the thickness value of the protective rubber sleeve layer is between 0.3mm and 0.5mm, the thickness value of the second shielding layer is between 0.1mm and 0.2mm, and the thickness value of the anticorrosive layer is between 0.1mm and 0.2 mm.
(III) advantageous effects
The invention provides a weak current cable with high safety performance, which has the following beneficial effects:
(1) this weak current cable that security performance is high through being provided with first shielding layer, second shielding layer, insulating layer, antistatic layer and tinfoil layer, can carry out effectual protection to outside static, has avoided this weak current cable phenomenon ageing and damage to appear, and the security performance is high, and thermal stability can be good.
(2) This light current cable that security performance is high through being provided with abrasionproof restrictive coating, protection gum cover layer, filling layer and anticorrosive coating, has certain wear resistance, and the effectual wearing and tearing of having avoided this light current cable through being provided with flame retardant coating and dampproof course, the effectual fire prevention and the humidity resistance who has strengthened this light current cable, the effectual life who guarantees the light current cable.
Drawings
Fig. 1 is a cross-sectional view of the body of the weak current cable of the present invention.
In the figure: 1 weak current cable body, 2 abrasionproof restrictive coatings, 3 first shielding layer, 4 flame retardant coatings, 5 dampproof courses, 6 antistatic layer, 7 insulating layers, 8 tinpaper layer, 9 protection gum cover layers, 10 filling layer, 11 second shielding layers, 12 anticorrosive coatings, 13 strengthening rib area, 14 electrically conductive copper wire bodies, 15 anti-skidding recesses.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a weak current cable with high safety performance comprises a weak current cable body 1, wherein the weak current cable body 1 sequentially comprises an anti-abrasion sheath layer 2, a first shielding layer 3, a fireproof layer 4, a dampproof layer 5, an antistatic layer 6, an insulating layer 7, a tin paper layer 8 and a filling layer 10 from outside to inside, the inside of the filling layer 10 is fixedly connected with a protective rubber sleeve layer 9 which is circularly arranged, the inner ring of each protective rubber sleeve layer 9 is fixedly connected with a second shielding layer 11, the inner ring of each second shielding layer 11 is fixedly connected with an anticorrosive layer 12, the inner ring of each anticorrosive layer 12 is wrapped with a conductive copper wire body 14, wherein the anti-abrasion sheath layer 2 is made of PVC material and has anti-abrasion and anti-fracture performance, the wear resistance of the weak current cable is effectively improved, the first shielding layer 3 is made of carbon fiber alloy material and has certain anti-static performance, static electricity can be effectively shielded, and has good anti-static effect, the fireproof layer 4 is made of polyvinyl chloride material, the polyvinyl chloride material has good fire resistance and high temperature resistance, the fireproof and high temperature resistance of the cable are effectively improved, the dampproof layer 5 is a PE film, moisture can be effectively blocked, the dampproof performance is good, the antistatic layer 6 is made of polyester fiber material, the insulating performance is good, the anti-leakage and antistatic effects are good, the insulating layer 7 is made of glass fiber material, the insulating performance is good, the normal use of the weak current cable is effectively guaranteed, the tinfoil layer 8 is made of tinfoil material, the waterproof and flame-retardant performances are good, the filling layer 10 is made of carbon fiber material, the insulating performance is good, certain hardness is achieved, the weak current cable can be effectively protected, the protective rubber sleeve layer 9 is made of rubber fiber composite material, the soft performance is good, the wear resistance and the insulating performance are good, the weak current cable can be effectively protected, the second shielding layer 11 is made of tin-plated copper material, can effectively guide out interference signals and static electricity, and has certain flexibility and good bending resistance, the anticorrosive layer 12 is made of zinc-plated coating and has certain corrosion resistance, damage to the conductive steel wire 14 is effectively avoided, the outer surface of the wear-resistant sheath layer 2 is provided with at least four anti-slip grooves 15 which are circularly arranged, and the number of the anti-slip grooves 15 is at least four, so that the wear-resistant sheath layer has certain anti-slip performance, and can effectively guide and drain water stains on the surface of the weak current cable, the number of the protective sheath layers 9 is at least five, the inner part of the filling layer 10 is fixedly connected with reinforcing rib belts 13, the reinforcing rib belts 13 are positioned among the five protective sheath layers 9, the inner ring of the wear-resistant sheath layer 2 is circularly shaped, the cross sections of the protective sheath layers 9 are circularly shaped, and the strength of the weak current cable is effectively enhanced, has certain toughness and good anti-pulling performance.
The inner ring of the anti-abrasion sheath layer 2 is fixedly connected with the outer ring of the first shielding layer 3, the inner ring of the first shielding layer 3 is fixedly connected with the outer ring of the fireproof layer 4, the inner ring of the fireproof layer 4 is fixedly connected with the outer ring of the dampproof layer 5, the inner ring of the dampproof layer 5 is fixedly connected with the outer ring of the antistatic layer 6, the inner ring of the antistatic layer 6 is fixedly connected with the outer ring of the stannum layer 8, the inner ring of the stannum layer 8 is fixedly connected with the outer ring of the filling layer 10, the thickness value of the anti-abrasion sheath layer 2 is between 0.5mm and 0.7mm, the thickness value of the first shielding layer 3 is between 0.2mm and 0.3mm, the thickness value of the fireproof layer 4 is between 0.2mm and 0.3mm, the thickness value of the dampproof layer 5 is between 0.2mm and 0.3mm, the thickness value of the antistatic layer 6 is between 0.1mm and 0.2mm, the thickness value of the insulating layer 7 is between 0.2mm and 0.3mm, and the value of the stannum layer 8 is between 0, the thickness value of the protective rubber sleeve layer 9 is between 0.3mm and 0.5mm, the thickness value of the second shielding layer 11 is between 0.1mm and 0.2mm, and the thickness value of the anticorrosive layer 12 is between 0.1mm and 0.2 mm.
To sum up, this weak current cable that security performance is high, through being provided with first shielding layer 3, second shielding layer 11, insulating layer 7, antistatic layer 6 and tin paper layer 8, can carry out effectual protection to outside static, the phenomenon of ageing and damage has been avoided appearing in this weak current cable, security performance is high, thermal stability can be good, through being provided with abrasionproof restrictive coating 2, protection gum cover layer 9, filling layer 10 and anticorrosive coating 12, certain wear resistance has, the effectual wearing and tearing of having avoided this weak current cable, through being provided with flame retardant coating 4 and dampproof course 5, the effectual fire prevention and the humidity resistance who strengthens this weak current cable, the effectual life who guarantees the weak current cable.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (1)

1. The utility model provides a weak current cable that security performance is high, includes weak current cable body (1), its characterized in that: the weak current cable body (1) sequentially comprises an anti-abrasion sheath layer (2), a first shielding layer (3), a fireproof layer (4), a moisture-proof layer (5), an antistatic layer (6), an insulating layer (7), a tin paper layer (8) and a filling layer (10) from outside to inside, wherein the inside of the filling layer (10) is fixedly connected with a protective rubber sleeve layer (9) which is circularly arranged, the inner ring of each protective rubber sleeve layer (9) is fixedly connected with a second shielding layer (11), the inner ring of each second shielding layer (11) is fixedly connected with an anticorrosive layer (12), and the inner ring of each anticorrosive layer (12) is coated with a conductive copper wire body (14); the inner ring of the anti-abrasion sheath layer (2) is fixedly connected with the outer ring of the first shielding layer (3), the inner ring of the first shielding layer (3) is fixedly connected with the outer ring of the fireproof layer (4), the inner ring of the fireproof layer (4) is fixedly connected with the outer ring of the moisture-proof layer (5), the inner ring of the moisture-proof layer (5) is fixedly connected with the outer ring of the antistatic layer (6), the inner ring of the antistatic layer (6) is fixedly connected with the outer ring of the tin paper layer (8), and the inner ring of the tin paper layer (8) is fixedly connected with the outer ring of the filling layer (10); the inner ring of the wear-resistant sheath layer (2) is circular, and the section of the protective rubber sleeve layer (9) is circular; the thickness value of the anti-abrasion sheath layer (2) is 0.5mm-0.7mm, the thickness value of the first shielding layer (3) is 0.2mm-0.3mm, the thickness value of the fire-proof layer (4) is 0.2mm-0.3mm, the thickness value of the moisture-proof layer (5) is 0.2mm-0.3mm, the thickness value of the antistatic layer (6) is 0.1mm-0.2mm, the thickness value of the insulating layer (7) is 0.2mm-0.3mm, and the thickness value of the tin paper layer (8) is 0.1mm-0.2 mm; the thickness value of the protective rubber sleeve layer (9) is between 0.3mm and 0.5mm, the thickness value of the second shielding layer (11) is between 0.1mm and 0.2mm, and the thickness value of the anticorrosive layer (12) is between 0.1mm and 0.2 mm; the first shielding layer (3) is made of carbon fiber alloy material, and the protective rubber sleeve layer (9) is made of rubber fiber composite material.
CN201811314700.2A 2017-05-22 2017-05-22 Weak current cable that security performance is high Active CN109637705B (en)

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CN201811314700.2A CN109637705B (en) 2017-05-22 2017-05-22 Weak current cable that security performance is high
CN201710361062.9A CN107316686B (en) 2017-05-22 2017-05-22 A kind of light current cable that security performance is high

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CN109637705B true CN109637705B (en) 2020-04-17

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CN111986848B (en) * 2020-08-19 2022-05-31 安徽天康集团数据线缆有限公司 Anti-interference data communication cable

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Publication number Priority date Publication date Assignee Title
CN201845579U (en) * 2010-11-03 2011-05-25 江苏长城电缆有限公司 Water-proof impermeable railway signal cable
CN103680717A (en) * 2012-09-21 2014-03-26 天津市晟新永乐电器制冷设备有限公司 Safe and reliable cable
CN202887831U (en) * 2012-09-29 2013-04-17 无锡荣诚电工材料有限公司 High temperature and corrosion-resistant control cable
CN203787143U (en) * 2014-01-20 2014-08-20 安徽海源特种电缆有限公司 Tensile and anti-interference type thermocouple compensation cable
CN204229883U (en) * 2014-09-30 2015-03-25 成都英博联宇科技有限公司 The fire-resistant cooling cable that blocks water of a kind of computer double shield stratotype
CN204257246U (en) * 2014-10-31 2015-04-08 彭伟成 A kind of Novel wire cable
CN204189491U (en) * 2014-10-31 2015-03-04 广东电缆厂有限公司 A kind of novel cable
CN205264376U (en) * 2015-11-26 2016-05-25 重庆中重石油机械有限公司 Heat preservation type cable
CN205140581U (en) * 2015-11-27 2016-04-06 孙武华 Heat dissipation formula optical fiber composite cable
CN205751638U (en) * 2016-05-16 2016-11-30 新宇电缆集团股份有限公司 A kind of movable type control cable used for ship
CN205827987U (en) * 2016-07-13 2016-12-21 苏州永皓电线有限公司 Anti-corrosion flame retardant cable mechanism
CN206116061U (en) * 2016-08-28 2017-04-19 威腾电气集团股份有限公司 All insulation pipe generating line
CN106328282A (en) * 2016-11-21 2017-01-11 电子科技大学中山学院 Anti-corrosion stretch-proof industrial control cable

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CN107316686B (en) 2019-01-01
CN109637705A (en) 2019-04-16

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