CN103632775A - Adjusting-free plastic extruding die for cable sheath production - Google Patents
Adjusting-free plastic extruding die for cable sheath production Download PDFInfo
- Publication number
- CN103632775A CN103632775A CN201210302372.0A CN201210302372A CN103632775A CN 103632775 A CN103632775 A CN 103632775A CN 201210302372 A CN201210302372 A CN 201210302372A CN 103632775 A CN103632775 A CN 103632775A
- Authority
- CN
- China
- Prior art keywords
- mold
- internal mold
- protective cover
- cable jacket
- cover material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses an adjusting-free plastic extruding die for cable sheath production. The die comprises an inner die and an outer die; sheath material circulation holes uniformly arranged along the circumference of the inner die are arranged between the inner and the outer die; the sheath material circulation holes are provided with a threaded annular connecting board; the inner die is in threaded connection with the outer die through the annular connecting board; an annular chamber for generating a cable sheath is formed between the inner die and the outer die; the axis of the inner is superposed with the axis of the outer die; as the inner die and the outer die are in threaded connection to form one body, and the axis of the inner is superposed with the axis of the outer die, the adjustment of the eccentricity of the inner die in relative to the outer die is saved before production is started, enormous adjusting time is saved, the adjustment of the eccentricity of the inner die is saved, links of material extruding and trial-manufacturing are saved, wastes of sheath materials, water and electricity and other production materials can be greatly reduced, and production costs can be effectively reduced.
Description
Technical field
The present invention relates to cable jacket production technical field, relate in particular to a kind of exempting from cable jacket production process and adjust extruded mould.
Background technology
Cable need to be wrapped one deck cable jacket at the outer surface of heart yearn in process of production, to prevent that extraneous water or corrosive substance from causing damage to inner heart yearn.
The production of cable jacket is carried out on cable sheath machine, on the head of cable jacket machine, extruded mould is installed, cable heart yearn with certain speed by the centre of extruded mould, the surrounding of extruded mould can constantly produce the surface that cable jacket covers cable core simultaneously, thereby completes cable cover(ing) being coated on cable core.
In the process of producing, the whole roundness of cable jacket wall is an important quality control index, currently used extruded mould is split type extruded mould, this extruded mould is comprised of internal mold and external mold, internal mold and external mold are installed on respectively on the head of described cable jacket machine, and internal mold and external mold itself are non-contacting and internal mold and external mold between be formed for the annular extrusion cavities that cable jacket is extruded, because the degree of eccentricity of extruded mould internal mold with respect to external mold has a huge impact the whole roundness to cable jacket, the internal mold degree of eccentricity is excessive will cause the inhomogeneous of cable jacket integral body, some part of the cable jacket of producing is blocked up and some part is very thin, this is unallowed, therefore need in process of production the degree of eccentricity of internal mold to remain in certain scope, to guarantee the product quality of cable jacket.
Therefore at present before start, first need to adjust the internal mold of extruded mould with respect to the degree of eccentricity of external mold, within making its scope in regulation, adjust whether also need to carry out the thickness of the sheath that material extrusion checking produces after the degree of eccentricity of internal mold even.
Yet, the adjusting of the degree of eccentricity of carrying out the internal mold of extruded mould not only needs veteran workman to regulate, and after having regulated, need the material extrusion of carrying out repeatedly to manufacture experimently, after material extrusion trial-production is qualified, can produce, this not only needs to waste a large amount of time and carries out the adjusting of the internal mold degree of eccentricity, has extended the available machine time, has reduced production efficiency, also can waste a large amount of protective cover materials simultaneously, improve the production cost of enterprise.
Therefore, how can shorten the available machine time, the waste that reduces protective cover material is the technical problem that current those skilled in the art need solution badly.
Summary of the invention
The object of this invention is to provide a kind of cable jacket and produce with exempting to adjust extruded mould, to shorten the available machine time of cable jacket machine, effectively reduce the waste of protective cover material simultaneously, reduce production costs.
For solving above-mentioned prior art problem, the invention provides a kind of cable jacket produces with exempting to adjust extruded mould, comprise internal mold and external mold, on described internal mold, be provided with for exempting to adjust extruded mould to be installed on the threaded ends on cable jacket machine by whole, between described internal mold and described external mold, be also provided with along the circumferential equally distributed protective cover material opening of described internal mold, on described protective cover material opening, be provided with threaded annular connecting plate, and described internal mold is threaded by described annular connecting plate with described external mold, between described internal mold and described external mold, be formed for producing the annular chamber of cable jacket, and the axis of described internal mold and the dead in line of described external mold.
Preferably, described protective cover material opening is arranged on described internal mold, described annular connecting plate is sheathed on described protective cover material opening and the outer surface of described annular connecting plate is provided with external screw thread, and the inner surface of described external mold is provided with the internal thread matching with described external screw thread.
Preferably, described protective cover material opening is arranged on the inner surface of described external mold, described annular connecting plate is embedded in the formed circular hole of described protective cover material opening, and on described annular connecting plate, be provided with internal thread, the outer surface of described internal mold is provided with the external screw thread matching with described internal thread.
Preferably, described annular chamber is for flowing into by protective cover material the frustum annular chamber that end reduces gradually to protective cover material outflow end.
Preferably, the hardness number of described internal mold and described external mold is 40-45HRC.
Preferably, the surface of described internal mold and described external mold all has carburized layer.
As can be seen from the above technical solutions, cable jacket provided by the present invention is produced with exempting to adjust extruded mould, comprise internal mold and external mold, on internal mold, be provided with for exempting to adjust extruded mould to be installed on the screw thread installation end on cable jacket machine by whole, between internal mold and external mold, be also provided with along the circumferential equally distributed protective cover material of internal mold and pass through hole, protective cover material is by being provided with threaded annular connecting plate on hole, internal mold is threaded by annular connecting plate with external mold, and between internal mold and external mold, formed the annular chamber for generation of cable jacket, the axis of internal mold and the dead in line of external mold.
This shows that cable jacket production provided by the present invention is with exempting to adjust extruded mould, its internal mold and external mold are threaded connection and become one, and the dead in line due to internal mold and external mold, thereby the internal mold also just guaranteeing and external mold is concentric, compare with at present split type extruded mould, owing to having guaranteed that interior external mold is concentric when mould is produced, therefore just saved before the start of production the adjusting of internal mold with respect to the degree of eccentricity of external mold, as long as the threaded ends of internal mold is connected and can be produced with the head of cable jacket machine, this has just saved a large amount of adjusting time, and because the connecting portion at internal mold and external mold is provided with protective cover material opening, therefore can guarantee protective cover material between internal mold and external mold in formed annular chamber by and form and be covered in the sheath on cable heart yearn, saving the link of also just having saved material extrusion trial-production when the internal mold degree of eccentricity regulates, thereby also greatly reduce the waste to means of production such as protective cover material and water power, thereby effectively reduce production cost.
Accompanying drawing explanation
The cable jacket that Fig. 1 provides for the embodiment of the present invention is produced with the cutaway view of exempting to adjust the internal mold of extruded mould;
Fig. 2 is the right view of Fig. 1;
The cable jacket that Fig. 3 provides for the embodiment of the present invention is produced with the cutaway view of exempting to adjust the external mold of extruded mould;
Fig. 4 is the right view of Fig. 3;
The cable jacket that Fig. 5 provides for the embodiment of the present invention is produced with the whole cutaway view of exempting to adjust extruded mould.
Embodiment
Core of the present invention is to provide a kind of cable jacket and produces with exempting to adjust extruded mould, this cable jacket is produced with exempting to adjust extruded mould the internal mold of extruded mould and external mold to be threaded connection to the extruded mould of the formula that becomes one, and when producing, guarantee that internal mold and external mold keep with one heart, thereby solved current cable jacket machine, before start, must regulate the internal mold of extruded mould and the problem of the concentricity between external mold.
In order to make those skilled in the art person understand better the solution of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please also refer to Fig. 1 to Fig. 5, the cable jacket that wherein Fig. 1 provides for the embodiment of the present invention is produced with the cutaway view of exempting to adjust the internal mold of extruded mould, Fig. 2 is the right view of Fig. 1, the cable jacket that Fig. 3 provides for the embodiment of the present invention is produced with the cutaway view of exempting to adjust the external mold of extruded mould, Fig. 4 is the right view of Fig. 3, and the cable jacket that Fig. 5 provides for the embodiment of the present invention is produced with the whole cutaway view of exempting to adjust extruded mould.
The cable jacket that the embodiment of the present invention provides is produced with exempting to adjust extruded mould, be installed on the head position of cable jacket machine, this cable jacket is produced with exempting to adjust extruded mould to comprise internal mold A and external mold B, on internal mold A, be provided with for whole extruded mould being installed on to the screw thread installation end 1 of cable jacket machine head, and same as the prior art, the middle part of internal mold A is also provided with the heart yearn passing through for cable heart yearn and passes through hole 3, external mold B middle part is provided with for being inserted in the container cavity 6 of internal mold A, between internal mold A and external mold B, be also provided with along the circumferential equally distributed protective cover material of internal mold A and pass through hole 2, protective cover material is passing through for cable sheath material by hole 2, and be also provided with threaded annular connecting plate 4 at protective cover material on by hole 2, internal mold A and external mold B are by this annular connecting plate 4 formula extruded mould that becomes one that is threaded, between internal mold A and external mold B, be formed for producing the annular chamber 7 of cable jacket, and the dead in line of the axis of internal mold A and external mold B, be that internal mold A keeps concentric with external mold B.
Cable jacket provided by the present invention is produced with exempting to adjust the using method of extruded mould as follows:
Directly the screw thread installation end 1 of internal mold A is arranged on the head of cable jacket machine, preheating is rear start production about 5 minutes, adopts the mode of heat installation in installation process, for guaranteeing convenient disassembly, back unscrews 15 °-30 ° after internal mold A tightens on head again.Owing to having guaranteed the concentricity between internal mold A and external mold B when mould is produced, thereby the annular chamber between internal mold A and external mold B 7 annular chamber that is even thickness, its cable jacket of producing there will not be the thin phenomenon of a part of thick another part, compare with at present split type extruded mould, cable jacket provided by the present invention is produced with exempting to adjust extruded mould to save the adjusting of the internal mold before start with respect to the external mold degree of eccentricity, this is just for a large amount of time has been saved in start, effectively improve production efficiency, and improved the quality of product; Meanwhile, owing to not carrying out the adjusting of the internal mold degree of eccentricity, thereby also just saved the link that cable jacket is manufactured experimently in material extrusion, this has just saved a large amount of protective cover materials, effectively reduces the production cost of enterprise; In addition, this cable jacket is produced the operation easier that can also effectively reduce cable jacket machine with the use of exempting to adjust extruded mould, because the adjusting of the degree of eccentricity of split type extruded mould internal mold needs veteran old employee to regulate, to accelerate starting up speed, reduce the waste of protective cover material, and cable jacket in the present invention is produced with exempting to adjust extruded mould not need to carry out the adjusting of the internal mold degree of eccentricity, thereby also can go up very soon manual manipulation for the new employee of enterprise, thereby can also reduce enterprise for employee's training time, reduce the input of training cost.
The setting of protective cover material opening 2, not only guaranteed that protective cover material is in internal mold A and the interior circulation of the formed annular chamber 7 of external mold B, also played the effect that strengthens cable jacket fineness simultaneously, due at protective cover material opening 2 places, fluid protective cover material is subject to certain extruding at protective cover material opening 2 places, thereby make protective cover material uniform and smooth more, at protective cover material, be coated on rear its fineness on the cable heart yearn of being derived by internal mold A middle part and be also significantly improved.
Protective cover material opening 2 in above-described embodiment can be arranged on internal mold A, now protective cover material opening 2 is axially uniformly distributed one week along internal mold A, then annular connecting plate 4 is sleeved on the periphery of protective cover material opening 2, and be fixedly connected with protective cover material opening 2, the outer surface of annular connecting plate 4 is provided with external screw thread, the inner surface of external mold B is provided with the internal thread 5 with this external screw thread adaptation, and internal mold A is threaded by annular connecting plate 4 with external mold B.
Certainly, protective cover material opening 2 can also be arranged on external mold B, at the inner surface of external mold B along the jacking opening 2 of encircling for protection is circumferentially evenly set, now annular connecting plate 4 is embedded in the formed circular hole of protective cover material opening 2, and be provided with internal thread on this annular connecting plate 4, the outer surface of internal mold A is provided with the external screw thread with this internal thread adaptation, and internal mold A is threaded by annular connecting plate 4 with external mold B.
Internal mold A adopts to be threaded with external mold B and can realize dismounting easily between interior external mold, and be threaded in the concentricity that can not affect internal mold A and external mold B in the middle of the process of dismounting, thereby can internal mold A and external mold B be taken apart and carry out cleaning work each production after complete, clean out and tightened afterwards.
In order further to optimize technique scheme, annular chamber 7 in the present embodiment is preferably designed to flow into by protective cover material the frustum annular chamber that end reduces gradually to protective cover material outflow end, protective cover material increases to flowing out its pressure the process of annular chamber 7 gradually from flowing into annular chamber 7 like this, can make like this protective cover material uniform and smooth more, thereby further improve the quality of cable jacket.
In the present embodiment, the Rockwell hardness of internal mold A and external mold B is preferably between 40-45, can adopt the mode of quenching to make the case hardness of internal mold A and external mold B reach this scope, for further optimisation technique scheme, can also carry out Carburization Treatment to internal mold A and external mold B, make its surface all there is one deck carburized layer, so not only can make the case hardness of internal mold A and external mold B reach ideal range, can also make its inside there is toughness, thereby improve the useful life that this exempts to adjust extruded mould simultaneously.
Applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection range of the claims in the present invention.
Claims (6)
1. a cable jacket is produced with exempting to adjust extruded mould, comprise internal mold (A) and external mold (B), on described internal mold, be provided with screw thread installation end (1), it is characterized in that, between described internal mold (A) and described external mold (B), be provided with along the circumferential equally distributed protective cover material opening of described internal mold (A) (2), on described protective cover material opening (2), be provided with threaded annular connecting plate (4), and described internal mold (A) is threaded by described annular connecting plate (4) with described external mold (B), between described internal mold (A) and described external mold (B), be formed for producing the annular chamber (7) of cable jacket, and the dead in line of the axis of described internal mold (A) and described external mold (B).
2. cable jacket according to claim 1 is produced with exempting to adjust extruded mould, it is characterized in that, described protective cover material opening (2) is arranged on described internal mold (A), described annular connecting plate (4) is sheathed on described protective cover material opening (2) outer surface upper and described annular connecting plate (4) and is provided with external screw thread, and the inner surface of described external mold (B) is provided with the internal thread (5) matching with described external screw thread.
3. cable jacket according to claim 1 is produced with exempting to adjust extruded mould, it is characterized in that, described protective cover material opening (2) is arranged on the inner surface of described external mold (B), described annular connecting plate (4) is embedded in the formed circular hole of described protective cover material opening (2), and described annular connecting plate is provided with internal thread on (4), the outer surface of described internal mold (A) is provided with the external screw thread matching with described internal thread.
4. cable jacket according to claim 1 is produced with exempting to adjust extruded mould, it is characterized in that, described annular chamber (7) is for flowing into by protective cover material the frustum annular chamber that end reduces gradually to protective cover material outflow end.
5. cable jacket according to claim 1 is produced with exempting to adjust extruded mould, it is characterized in that, the hardness number of described internal mold (A) and described external mold (B) is 40-45HRC.
6. according to the cable jacket described in claim 1-5 any one, produce with exempting to adjust extruded mould, it is characterized in that, the surface of described internal mold (A) and described external mold (B) all has carburized layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210302372.0A CN103632775B (en) | 2012-08-23 | 2012-08-23 | A kind of cable sheathing produces with exempting from tune extruded mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210302372.0A CN103632775B (en) | 2012-08-23 | 2012-08-23 | A kind of cable sheathing produces with exempting from tune extruded mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103632775A true CN103632775A (en) | 2014-03-12 |
| CN103632775B CN103632775B (en) | 2016-06-29 |
Family
ID=50213717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210302372.0A Active CN103632775B (en) | 2012-08-23 | 2012-08-23 | A kind of cable sheathing produces with exempting from tune extruded mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103632775B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106915054A (en) * | 2017-04-25 | 2017-07-04 | 江苏亨通电子线缆科技有限公司 | A kind of New type detachable ultra-thin-wall extruded mould |
| CN108527810A (en) * | 2018-03-30 | 2018-09-14 | 烽火通信科技股份有限公司 | Butterfly optical cable production mould and its production line |
| CN110576580A (en) * | 2019-09-04 | 2019-12-17 | 深圳市特发信息光网科技股份有限公司 | Cable mould and outer mould thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2198654Y (en) * | 1994-05-31 | 1995-05-24 | 高福文 | Cable coating machine head without regulating mould |
| CN2846100Y (en) * | 2005-12-23 | 2006-12-13 | 鲁能泰山曲阜电缆有限公司 | Cable sheath extruding self setting core mouth mold |
| CN201215746Y (en) * | 2008-06-27 | 2009-04-01 | 远东电缆有限公司 | Pressing type mold for electric cable protection sleeve |
| CN201489918U (en) * | 2009-08-10 | 2010-05-26 | 广东吉青电缆实业有限公司 | Core-adjusting-free wire and cable extruding machine head die |
| CN102033277A (en) * | 2010-07-07 | 2011-04-27 | 中纤伟业科技发展（北京）有限公司 | Eccentricity-adjustment-free optical cable manufacturing die |
| CN202067004U (en) * | 2011-05-11 | 2011-12-07 | 江苏南方通信科技有限公司 | Self-centering mold of optical cable sheath plastic extruding machine |
| CN202093895U (en) * | 2011-06-17 | 2011-12-28 | 九星控股集团有限公司 | Fast die-changing die for sheath extruding machine |
| CN202749160U (en) * | 2012-08-23 | 2013-02-20 | 杭州圆通线缆科技有限公司 | Adjusting-free plastic extruding die for cable sheath production |
-
2012
- 2012-08-23 CN CN201210302372.0A patent/CN103632775B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2198654Y (en) * | 1994-05-31 | 1995-05-24 | 高福文 | Cable coating machine head without regulating mould |
| CN2846100Y (en) * | 2005-12-23 | 2006-12-13 | 鲁能泰山曲阜电缆有限公司 | Cable sheath extruding self setting core mouth mold |
| CN201215746Y (en) * | 2008-06-27 | 2009-04-01 | 远东电缆有限公司 | Pressing type mold for electric cable protection sleeve |
| CN201489918U (en) * | 2009-08-10 | 2010-05-26 | 广东吉青电缆实业有限公司 | Core-adjusting-free wire and cable extruding machine head die |
| CN102033277A (en) * | 2010-07-07 | 2011-04-27 | 中纤伟业科技发展（北京）有限公司 | Eccentricity-adjustment-free optical cable manufacturing die |
| CN202067004U (en) * | 2011-05-11 | 2011-12-07 | 江苏南方通信科技有限公司 | Self-centering mold of optical cable sheath plastic extruding machine |
| CN202093895U (en) * | 2011-06-17 | 2011-12-28 | 九星控股集团有限公司 | Fast die-changing die for sheath extruding machine |
| CN202749160U (en) * | 2012-08-23 | 2013-02-20 | 杭州圆通线缆科技有限公司 | Adjusting-free plastic extruding die for cable sheath production |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106915054A (en) * | 2017-04-25 | 2017-07-04 | 江苏亨通电子线缆科技有限公司 | A kind of New type detachable ultra-thin-wall extruded mould |
| CN108527810A (en) * | 2018-03-30 | 2018-09-14 | 烽火通信科技股份有限公司 | Butterfly optical cable production mould and its production line |
| CN108527810B (en) * | 2018-03-30 | 2020-10-27 | 烽火通信科技股份有限公司 | Butterfly-shaped optical cable production mold and production line thereof |
| CN110576580A (en) * | 2019-09-04 | 2019-12-17 | 深圳市特发信息光网科技股份有限公司 | Cable mould and outer mould thereof |
| CN110576580B (en) * | 2019-09-04 | 2024-04-16 | 深圳市特发信息光网科技股份有限公司 | Cable mould |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103632775B (en) | 2016-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202749160U (en) | Adjusting-free plastic extruding die for cable sheath production | |
| CN103632775A (en) | Adjusting-free plastic extruding die for cable sheath production | |
| WO2015063496A3 (en) | Techniques for coating pipes | |
| CN205326231U (en) | Concentricity exempts from to transfer trombone slide formula mould | |
| CN202067004U (en) | Self-centering mold of optical cable sheath plastic extruding machine | |
| CN105346049A (en) | Concentricity adjustment free pull tube type mold | |
| CN208644905U (en) | One kind being used for thin-wall sleeve pipe part bar grinding attachment | |
| CN202805547U (en) | Concentric sleeve gel injection precise mould provided with gel injection diversion loop | |
| CN202658220U (en) | Magnetic control sputtering target of magnetic control sputtering film plating machine | |
| CN103568228A (en) | Precise temperature-controlled bushing type charging barrel of injection molding machine | |
| CN103552246A (en) | Processing method of rubber hose | |
| CN207475897U (en) | A kind of high-effect heater | |
| CN202805550U (en) | Concentric sleeve glue injection precision mould | |
| CN101618592B (en) | Mould | |
| CN206201370U (en) | A kind of injection mold die head | |
| CN210061914U (en) | Plastic coating mold | |
| CN204172371U (en) | A kind of GRP pipe female end is wound around and makes location demoulding baffle ring device | |
| CN203289670U (en) | Tubular electric heater | |
| CN103963201A (en) | Visual heating rotational molding device | |
| CN103042654A (en) | Injection molding machine | |
| CN202753393U (en) | Screw type plastic extruder | |
| CN109849256A (en) | Instrument housing resin injection molding technique | |
| CN202753376U (en) | Plastic extrusion die | |
| CN206003564U (en) | A kind of extruding machine optical cable mould is from bearing | |
| RU2583013C2 (en) | Method of making rubber-cord articles of sleeve type and device therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170418 Address after: Hangzhou City, Zhejiang province 310018 economic and Technological Development Zone No. 12 Street No. 9 Patentee after: Hangzhou Huaxin Electric Power Cable Co., Ltd. Address before: 310018 Xiasha economic and Technological Development Zone, Zhejiang, Hangzhou M16-3-5 Patentee before: HANGZHOU YUANTONG CABLE TECHNOLOGY CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191224 Address after: Hangzhou City, Zhejiang province 310018 economic and Technological Development Zone No. 12 Street No. 9 Co-patentee after: HANGZHOU FUTONG ELECTRIC WIRE & CABLE CO., LTD. Patentee after: Hangzhou Huaxin Electric Power Cable Co., Ltd. Address before: Hangzhou City, Zhejiang province 310018 economic and Technological Development Zone No. 12 Street No. 9 Patentee before: Hangzhou Huaxin Electric Power Cable Co., Ltd. |