CN212010414U - Flexible high-speed wire pair, high-speed wire rod and high-speed cable - Google Patents
Flexible high-speed wire pair, high-speed wire rod and high-speed cable Download PDFInfo
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- CN212010414U CN212010414U CN202020126784.3U CN202020126784U CN212010414U CN 212010414 U CN212010414 U CN 212010414U CN 202020126784 U CN202020126784 U CN 202020126784U CN 212010414 U CN212010414 U CN 212010414U
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 49
- 239000002184 metal Substances 0.000 claims abstract description 49
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 18
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 18
- 238000005253 cladding Methods 0.000 claims abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 12
- 238000001125 extrusion Methods 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 9
- 238000005187 foaming Methods 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 84
- 239000006223 plastic coating Substances 0.000 claims description 16
- 239000011247 coating layer Substances 0.000 claims description 15
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 12
- 239000011888 foil Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 9
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 9
- 239000011889 copper foil Substances 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 9
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 238000009941 weaving Methods 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 229920000295 expanded polytetrafluoroethylene Polymers 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a flexible high-speed line pair, high-speed wire rod and high-speed cable, it includes that parallel line group, cladding set up in the outer metallic shield area of parallel line group, two parallels in the ground wire of metallic shield area both sides and cladding in metallic shield area and the outer restrictive coating of ground wire, its characterized in that, flexible high-speed line pair still includes: the PTFE tape is wrapped and coated outside the parallel line group, and the metal shielding tape is longitudinally coated outside the PTFE tape; the parallel line group comprises at least one pair of core wires which are arranged in parallel, wherein in one core wire, the core wire comprises a central conductor and a foaming extrusion layer, and the foaming extrusion layer is coated outside the central conductor. The utility model relates to a flexible high-speed line pair, high-speed wire rod and high-speed cable, through the heart yearn that sets up the expanded structure to set up the PTFE area and indulge a packet of metallic shield area around the package outside the heart yearn, thereby can make the weight of wire rod lighter, the external diameter of wire rod littleer, and when minimum bend radius reaches below 5 times OD, can also satisfy SFF 8417's 200 times and sway the test.
Description
Technical Field
The utility model relates to a high-speed cable field especially relates to a flexible high-speed line pair, high-speed wire rod and high-speed cable.
Background
A device for transmission of a linear structure of electromagnetic energy. It is an important component of telecommunication systems for transporting information-carrying electromagnetic waves from one point to another along a route defined by a transmission line. The waveguide structure transmits electric energy and/or electric signals in a transverse electromagnetic mode. The transmission line is characterized by a lateral dimension much smaller than the operating wavelength. The main structural types are parallel double-conductor, parallel multi-conductor, coaxial line, strip line, microstrip line working in quasi-TEM mode, etc., which can be used for circuit analysis by means of simple double-conductor model. Various waveguides that transmit TE mode, TM mode, or mixed modes thereof can be considered to be broad transmission lines. The distribution rule of the electromagnetic field in the waveguide along the propagation direction is similar to the voltage and current conditions on the transmission line, and the distribution rule can be analyzed by using the viewpoint of an equivalent transmission line.
However, in the conventional 25GHZ high-speed electric wire, a solid insulating core wire is longitudinally wrapped with an aluminum foil, and then a self-adhesive PET tape is wrapped around the aluminum foil. The high-speed cable with the structure has the advantages that the outer diameter of the wire is large, the wire is relatively hard, the minimum bending radius is 10 times OD, and meanwhile, the size of the wire is relatively large, so that the development trend of light, thin and small market cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point among the prior art, provide a flexible high-speed line pair, high-speed wire rod and high-speed cable for the weight of wire rod is lighter, the external diameter of wire rod is littleer, and when minimum bend radius reaches below 5 times OD, can also satisfy SFF 8417's 200 times and sway the test.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a flexible high-speed wire pair, its includes the parallel line group, wraps the metal shielding area outside the parallel line group, two parallel arrangement in the ground wire of metal shielding area both sides and the restrictive coating of cladding outside metal shielding area and ground wire, flexible high-speed wire pair still includes: the PTFE tape is wrapped and coated outside the parallel line group, and the metal shielding tape is longitudinally coated outside the PTFE tape;
the parallel line group comprises at least one pair of core wires which are arranged in parallel, wherein in one core wire, the core wire comprises a central conductor and a foaming extrusion layer, and the foaming extrusion layer is coated outside the central conductor.
In one embodiment, the metal shielding tape is any one of an aluminum foil, a copper foil, a silver foil, a gold foil, and a tin foil.
In one embodiment, the metal shielding tape is any one of an adhesive aluminum foil, a copper foil, a silver foil, a gold foil, and a tin foil.
In one embodiment, the PTFE tape is expanded polytetrafluoroethylene tape.
In one embodiment, the sheath layer includes a glue layer and a PET layer, and the glue layer is attached to the PET layer, so that the PET layer covers the metal shielding tape and the two ground wires.
The utility model also provides a high-speed wire, including any one of the above flexible high-speed wire pairs, wherein, the number of the flexible high-speed wire pairs is two, and the two flexible high-speed wire pairs are arranged in parallel;
the high-speed wire rod further comprises a first metal coating layer, a first weaving layer and a first protection outer sleeve layer, the first metal coating layer is coated outside the two flexible high-speed wires, the first weaving layer is coated outside the first metal coating layer, and the first protection outer sleeve layer is coated outside the first weaving layer.
In one embodiment, the high-speed wire further comprises a first plastic coating layer, the first plastic coating layer is coated outside the two flexible high-speed wire pairs, and the first metal coating layer is coated outside the first plastic coating layer.
The utility model also provides a high-speed cable, include: the flexible high-speed wire pairs comprise any one of the flexible high-speed wire pairs, wherein the number of the flexible high-speed wire pairs is four, and the four flexible high-speed wire pairs are arranged in parallel;
the high-speed cable further comprises a middle filling body and an outer layer protection piece, the four flexible high-speed wire pairs are arranged outside the middle filling body in a surrounding mode, and the outer layer protection piece covers the four flexible high-speed wires to the outside.
In one embodiment, the outer protection member comprises a second metal coating layer, a second braided layer and a second protective outer sleeve layer which are coated from inside to outside.
In one embodiment, the high-speed cable further comprises a second plastic coating layer, the second plastic coating layer is coated outside the four flexible high-speed wire pairs, and the second metal coating layer is coated outside the second plastic coating layer.
The utility model discloses compare in prior art's advantage and beneficial effect as follows:
the utility model relates to a flexible high-speed line pair, high-speed wire rod and high-speed cable, through the heart yearn that sets up the expanded structure to set up the PTFE area and indulge a packet of metallic shield area around the package outside the heart yearn, thereby can make the weight of wire rod lighter, the external diameter of wire rod littleer, and when minimum bend radius reaches below 5 times OD, can also satisfy SFF 8417's 200 times and sway the test.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a flexible high-speed line pair according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a high-speed wire according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a high-speed cable according to an embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a flexible high-speed wire pair 10 includes a parallel wire set 100, a metal shielding tape 200 wrapped outside the parallel wire set 100, two ground wires 300 disposed in parallel on two sides of the metal shielding tape 200, and a sheath layer 400 wrapped outside the metal shielding tape 200 and the ground wires 300, and further includes: and the PTFE tape 500 is wrapped and coated outside the parallel line group, and the metal shielding tape 200 is longitudinally coated outside the PTFE tape 500.
It should be noted that the parallel line group 100 is used to realize high-speed transmission; the PTFE tape 500 is wrapped over the parallel wire sets in a spiral wound manner to make the wire smaller in construction, lighter in weight, and smaller in minimum bend radius; the metal shielding tape 200 is coated outside the PTFE tape 500 in a longitudinal coating mode, so that the attenuation value can be effectively reduced, and the attenuation is about 10% better than that of the existing wire; the ground wire 300 is used for realizing the function of grounding; the sheath layer 400 is used to protect the flexible high-speed wire pair and improve the structural stability of the wire pair.
Preferably, the PTFE tape is a PTFE tape, and in this embodiment, the metal shielding tape is any one of an aluminum foil, a copper foil, a silver foil, a gold foil, and a tin foil. In another embodiment, the metal shielding tape is any one of an adhesive aluminum foil, a copper foil, a silver foil, a gold foil, and a tin foil. It should be noted here that the aluminum foil, the copper foil, the silver foil, the gold foil and the tin foil with adhesiveness are formed by adhering a layer of glue to the aluminum foil, the copper foil, the silver foil, the gold foil and the tin foil, so that the aluminum foil, the copper foil, the silver foil, the gold foil and the tin foil with adhesiveness are provided with a certain amount of glue, and the adhesiveness can be better realized during longitudinal wrapping, and further the structure is more stable.
Referring to fig. 1, the parallel line group 100 includes at least one pair of core wires 110 arranged in parallel, and in one of the core wires 110, the core wire 110 includes a central conductor 111 and a foam extrusion layer 112, and the foam extrusion layer is coated outside the central conductor. Specifically, the foamed extrusion layer is coated outside the center conductor in an extrusion molding mode.
It should be noted that the material of the foamed extrusion layer 112 is PE foam, so that the core wire has a lighter and smaller structure. Like this, through setting up the heart yearn of foaming structure to set up the PTFE area and indulge the package metal shielding area outside the heart yearn outward, thereby can make the weight of wire lighter, the external diameter of wire smaller, and minimum bend radius reaches below 5 times OD, can also satisfy SFF 8417's 200 and sway the test.
It should be noted that the sheath layer is spirally wound outside the metal shielding tape and the two ground wires. So, through setting up mode cladding metal shielding area and ground wire structure around the package for the structure of whole wire rod is more stable, and the protective effect is more reliable.
The sheath layer comprises a glue layer and a PET layer, and the glue layer is attached to the PET layer so that the PET layer covers the metal shielding belt and the two ground wires. So, through setting up the glue layer, can improve adhesion effect for the PET layer is attached more steadily on the lateral wall of metal shielding area and two ground wires, and then makes the structure of wire rod more stable.
Referring to fig. 2, the present invention further provides a high-speed wire 20, including the flexible high-speed wire pair 10 described above, wherein the number of the flexible high-speed wire pairs is two, and the two flexible high-speed wire pairs are arranged in parallel; thus, by providing two parallel flexible high-speed wire pairs 10, the speed and efficiency of data or signal transmission can be increased.
Referring to fig. 2, the high-speed wire 20 further includes a first metal coating layer 21, a first braided layer 22 and a first protective outer jacket layer 23, the first metal coating layer is coated outside the two flexible high-speed wires, the first braided layer is coated outside the first metal coating layer, and the first protective outer jacket layer is coated outside the first braided layer. It should be noted that the first metal cladding 21 and the first braided layer 22 are used to achieve the shielding effect of the ground wire; the first protective outer jacket layer 23 serves for protection.
Referring to fig. 2, the high-speed wire further includes a first plastic coating layer 24, the first plastic coating layer is coated outside the two flexible high-speed wire pairs, and the first metal coating layer is coated outside the first plastic coating layer. In actual production process, first plastics coating 24 then coats according to customer's demand, then can improve structural stability through setting up first plastics coating 24, further guarantees the high-speed transmission of wire rod. Of course, no coating may be applied.
Referring to fig. 3, the present invention further provides a high-speed cable 30, including: the flexible high-speed wire pairs 10 comprise any one of the flexible high-speed wire pairs 10, wherein the number of the flexible high-speed wire pairs 10 is four, and the four flexible high-speed wire pairs are arranged in parallel; therefore, the four flexible high-speed wire pairs 10 can be connected end to form a regular structure.
Referring to fig. 3, the high-speed cable 30 further includes an intermediate filling body 31 and an outer protection member 32, the four flexible high-speed line pairs are disposed around the intermediate filling body, and the outer protection member covers the four flexible high-speed lines. So, through filler 31 in the middle of setting up, can play the effect of supporting each flexible high-speed line pair, through setting up outer protection piece 32, can protect high-speed cable, improve the structural stability and the life of cable.
Referring to fig. 3, the outer protection member 32 includes a second metal covering layer 33, a second braided layer 34 and a second protective outer covering layer 35. In this manner, by providing second metal cladding layer 33, second braid layer 34, and second protective overcoat layer 35, structural stability may be effectively improved.
Referring to fig. 3, the high-speed cable further includes a second plastic coating layer 36, the second plastic coating layer covers the four flexible high-speed wire pairs, and the second metal coating layer covers the second plastic coating layer. In this embodiment, by providing the second plastic coating 36, the coating of the structure can be improved, and the structural strength of the cable can be further improved. Of course, the second plastic coating layer 36 is set according to actual production, and may not be coated. Preferably, the first and second plastic covers 36 are PET layers; the first metal cladding layer and the second metal cladding layer are aluminum foil layers.
The utility model discloses compare in prior art's advantage and beneficial effect as follows:
the utility model relates to a flexible high-speed line pair, high-speed wire rod and high-speed cable, through the heart yearn that sets up the expanded structure to set up the PTFE area and indulge a packet of metallic shield area around the package outside the heart yearn, thereby can make the weight of wire rod lighter, the external diameter of wire rod littleer, and when minimum bend radius reaches below 5 times OD, can also satisfy SFF 8417's 200 times and sway the test.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a flexible high-speed line pair, its includes parallel line group, cladding metal shielding area outside parallel line group, two parallel arrangement in the ground wire of metal shielding area both sides and cladding in metal shielding area and the outer restrictive coating of ground wire, its characterized in that, flexible high-speed line pair still includes: the PTFE tape is wrapped and coated outside the parallel line group, and the metal shielding tape is longitudinally coated outside the PTFE tape;
the parallel line group comprises at least one pair of core wires which are arranged in parallel, wherein in one core wire, the core wire comprises a central conductor and a foaming extrusion layer, and the foaming extrusion layer is coated outside the central conductor.
2. The flexible high-speed wire pair according to claim 1, wherein the metal shielding tape is any one of aluminum foil, copper foil, silver foil, gold foil, and tin foil.
3. The flexible high-speed wire pair according to claim 1, wherein the metal shielding tape is any one of an adhesive aluminum foil, a copper foil, a silver foil, a gold foil, and a tin foil.
4. The flexible high speed wire pair of claim 1, wherein the PTFE tape is expanded polytetrafluoroethylene tape.
5. The flexible high-speed wire pair as claimed in claim 1, wherein the sheath layer comprises a glue layer and a PET layer, and the glue layer is attached to the PET layer so that the PET layer covers the metal shielding tape and the two ground wires.
6. A high-speed wire rod, which is characterized by comprising the flexible high-speed wire pair as claimed in any one of claims 1 to 5, wherein the number of the flexible high-speed wire pairs is two, and the two flexible high-speed wire pairs are arranged in parallel;
the high-speed wire rod further comprises a first metal coating layer, a first weaving layer and a first protection outer sleeve layer, the first metal coating layer is coated outside the two flexible high-speed wires, the first weaving layer is coated outside the first metal coating layer, and the first protection outer sleeve layer is coated outside the first weaving layer.
7. The high-speed wire rod of claim 6, further comprising a first plastic cladding layer, wherein the first plastic cladding layer is clad outside the two pairs of flexible high-speed wires, and wherein the first metal cladding layer is clad outside the first plastic cladding layer.
8. A high speed cable, comprising: the flexible high-speed wire pair comprises the flexible high-speed wire pair of any one of claims 1 to 5, wherein the number of the flexible high-speed wire pairs is four, and the four flexible high-speed wire pairs are arranged in parallel;
the high-speed cable further comprises a middle filling body and an outer layer protection piece, the four flexible high-speed wire pairs are arranged outside the middle filling body in a surrounding mode, and the outer layer protection piece covers the four flexible high-speed wires to the outside.
9. The high-speed cable according to claim 8, wherein the outer protection member comprises a second metal coating layer, a second braided layer and a second protective outer jacket layer coated from inside to outside.
10. The high-speed cable of claim 9, further comprising a second plastic coating that coats the four pairs of flexible high-speed wires, the second metal coating the second plastic coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020126784.3U CN212010414U (en) | 2020-01-19 | 2020-01-19 | Flexible high-speed wire pair, high-speed wire rod and high-speed cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020126784.3U CN212010414U (en) | 2020-01-19 | 2020-01-19 | Flexible high-speed wire pair, high-speed wire rod and high-speed cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212010414U true CN212010414U (en) | 2020-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020126784.3U Active CN212010414U (en) | 2020-01-19 | 2020-01-19 | Flexible high-speed wire pair, high-speed wire rod and high-speed cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212010414U (en) |
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- 2020-01-19 CN CN202020126784.3U patent/CN212010414U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210714 Address after: 516029 Desai No.3 Industrial Park, Zhongkai Avenue, Huizhou City, Guangdong Province Patentee after: LTK ELECTRIC WIRE (HUIZHOU) Ltd. Patentee after: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. Patentee after: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Patentee after: LTK ELECTRIC WIRE (CHANGZHOU) Ltd. Address before: 516006 Desai No.3 Industrial Park, Zhongkai Avenue, Huizhou City, Guangdong Province Patentee before: LTK ELECTRIC WIRE (HUIZHOU) Ltd. Patentee before: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. Patentee before: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Patentee before: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Patentee before: LTK ELECTRIC WIRE (CHANGZHOU) Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.6, Qingli Second Road, Shuikou Street, Huicheng District, Huizhou, Guangdong Province, 516000 Patentee after: LTK Electric Wire (Huizhou) Ltd. Patentee after: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. Patentee after: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Patentee after: LTK ELECTRIC WIRE (CHANGZHOU) Ltd. Address before: 516029 Desai No.3 Industrial Park, Zhongkai Avenue, Huizhou City, Guangdong Province Patentee before: LTK ELECTRIC WIRE (HUIZHOU) Ltd. Patentee before: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. Patentee before: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Patentee before: LTK ELECTRIC WIRE (CHANGZHOU) Ltd. |