CN109941823B - Efficient carbon fiber production special use is received silk machine and is received silk mechanism - Google Patents
Efficient carbon fiber production special use is received silk machine and is received silk mechanism Download PDFInfo
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- CN109941823B CN109941823B CN201910210709.7A CN201910210709A CN109941823B CN 109941823 B CN109941823 B CN 109941823B CN 201910210709 A CN201910210709 A CN 201910210709A CN 109941823 B CN109941823 B CN 109941823B
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 42
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 42
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 230000007246 mechanism Effects 0.000 title claims abstract description 21
- 238000007380 fibre production Methods 0.000 title claims abstract description 13
- 238000004804 winding Methods 0.000 claims abstract description 257
- 239000000835 fiber Substances 0.000 description 4
- 238000009730 filament winding Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000013081 microcrystal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The high-efficiency wire winding mechanism of the special wire winding machine for carbon fiber production is characterized by comprising a wire winding workbench, a wire winding motor support, a rotary table, roller bearings, rollers, a winding drum motor support, a winding drum motor, a winding drum bottom plate, a winding drum shaft, a winding drum and a winding drum connecting plate, wherein the wire winding motor is arranged on one side of the surface of the wire winding workbench, the rotary table is arranged on one side of the wire winding motor, and each roller bearing is arranged at two ends of the other side surface of the rotary table; the top end of the winding drum motor penetrates through the wire winding workbench and is vertically and fixedly connected with the lower surface of the winding drum bottom plate; the winding drum is clamped into the winding drum connecting plate lug through the winding drum connecting hole, and the winding drum is fixedly connected with the winding drum connecting plate. The invention increases the quantity of simultaneously wound wires, improves the winding efficiency, ensures that the wires are not disordered and clamped during winding, and has high winding quality and strong winding continuity.
Description
Technical Field
The invention belongs to the field of carbon fiber production equipment, and particularly relates to a high-efficiency wire collecting mechanism of a special wire collecting machine for carbon fiber production.
Background
The carbon fiber is a new fiber material of high-strength and high-modulus fiber with carbon content of more than 95%. It is made up by stacking organic fibres of flake graphite microcrystals along the axial direction of fibre, and making carbonization and graphitization treatment so as to obtain the invented microcrystal graphite material. The carbon fiber is flexible outside and rigid inside, has lighter weight than metal aluminum, higher strength than steel, corrosion resistance and high modulus, and is an important material in national defense, military industry and civil use. It not only has the intrinsic characteristic of carbon material, but also has the soft workability of textile fiber, and is a new generation of reinforced fiber. The carbon fiber has many excellent properties, high axial strength and modulus, low density, high specific performance, no creep deformation, super high temperature resistance in non-oxidation environment, good fatigue resistance, specific heat and conductivity between nonmetal and metal, small thermal expansion coefficient, anisotropy, good corrosion resistance and good X-ray permeability. Good electric and heat conducting performance, good electromagnetic shielding performance and the like.
The carbon fiber winding is the last process of carbon fiber processing, and prepared carbon fibers need to be wound on a winding drum, so that the purpose of winding is achieved. The prior art has the following technical defects: when the carbon fiber is wound, most of equipment can only wind a single tow, and the winding efficiency is low; the carbon fibers cannot be uniformly arranged and wound on the winding drum by the yarn winding mechanism, and the phenomena of yarn disorder, yarn clamping and the like can occur during winding, so that the accuracy and the continuity of yarn winding are influenced.
Disclosure of Invention
In order to solve the existing problems, the invention discloses a high-efficiency special yarn collecting mechanism of a yarn collecting machine for carbon fiber production, which has the following specific technical scheme: a high-efficiency wire winding mechanism of a special wire winding machine for carbon fiber production comprises a wire winding workbench, a wire winding motor support, a turntable, a roller bearing, a roller, a winding drum motor support, a winding drum motor, a winding drum bottom plate, a winding drum shaft, a winding drum and a winding drum connecting plate, wherein the wire winding motor is arranged on one side of the surface of the wire winding workbench, the bottom end of the wire winding motor support is fixedly connected with the upper surface of the wire winding workbench through a fastener, and the top end of the wire winding motor support is fixedly connected with the wire winding motor through a fastener; the rotary disc is of a disc-shaped structure, the rotary disc is arranged on one side of the wire winding motor, and one side face of the rotary disc is vertically and fixedly connected with the wire winding motor; the number of the roller bearings is two, each roller bearing is arranged at two ends of the other side face of the turntable, and one end of each roller bearing is vertically and fixedly connected with the turntable; the roller is arranged at the other end of the roller bearing and is rotationally connected with the roller bearing through a shaft; the winding drum motor support is arranged on one side of the bottom surface of the wire winding workbench and is fixedly connected with the wire winding workbench through a fastener; the winding drum motor is arranged on the upper surface of the winding drum motor support, the winding drum motor is fixedly connected with the winding drum motor support through a fastener, the winding drum bottom plate is of a disc-shaped structure, a winding drum bottom plate bump is arranged on the upper surface of the winding drum bottom plate, the winding drum shaft is vertically arranged in the center of the upper surface of the winding drum bottom plate and is of an integrated structure, the winding drum bottom plate is arranged on the upper surface of the wire winding workbench, and the top end of the winding drum motor penetrates through the wire winding workbench and is vertically and fixedly connected with the lower surface of the winding drum bottom; the number of the winding drums is two, the centers of the winding drums are of hollow structures to form winding drum through holes, and winding drum connecting holes are formed in the circumferential directions of the top surface and the bottom surface of each winding drum; the winding drum is arranged on the winding drum bottom plate, the winding drum shaft penetrates through the winding drum through hole and is clamped into the winding drum bottom plate bump through the winding drum connecting hole, and the winding drum is fixedly connected with the winding drum bottom plate; the winding drum connecting plate is of a disc-shaped structure, a winding drum connecting plate shaft hole is formed in the center of the winding drum connecting plate, and winding drum connecting plate lugs are arranged on the upper surface and the lower surface of the winding drum connecting plate; the winding drum is clamped into the winding drum connecting plate lug through the winding drum connecting hole, and the winding drum is fixedly connected with the winding drum connecting plate.
Furthermore, the number of the drum bottom plate lugs is four, each drum bottom plate lug is circumferentially arranged on the upper surface of the drum bottom plate, and each drum bottom plate lug is vertically and fixedly connected with the drum bottom plate and is of an integrated structure.
Furthermore, the number of the reel connecting plate lugs on each side of the reel connecting plate is four, and each reel connecting plate lug is circumferentially arranged on the surface of the reel connecting plate.
Furthermore, the positions of the lugs on the bottom plate of the winding drum are matched with the positions of the connecting holes of the winding drum, and the positions of the lugs on the connecting plate of the winding drum on each side are matched with the positions of the connecting holes of the winding drum.
Further, the height of the two winding drums is matched with the distance between the two rollers.
The working principle of the invention is as follows:
when the winding mechanism works, two carbon fiber wires are conveyed to the winding mechanism through the wire guide mechanism, slide on the rollers and are wound on the winding drums on the upper side and the lower side through the rotation action of the winding drum motor. The rotating speed of the wire winding motor and the rotating speed of the winding drum motor are well adjusted to be matched. When the filament winding motor rotates to drive the turntable to rotate to the position shown in the attached figure 2, the rollers are arranged at the upper end and the lower end of the turntable, the filament winding motor rotates to drive the turntable to rotate slowly, the carbon fiber filaments slide through the rollers in cooperation with the rotation of the winding drum motor, and the two carbon fiber filaments are wound on respective winding drums from the upper end to the lower end at a constant speed towards the middle. When the turntable rotates to the position shown in the attached drawing 3, the rollers are arranged at the left end and the right end of the turntable, and the two carbon fiber wires are wound to the middle positions of the two winding drums to complete the uniform winding of a layer of carbon fiber wire on the winding drum; and then the yarn collecting motor continues to rotate, and two carbon fiber yarns are wound on respective winding drums from the middle to the upper end and the lower end at a constant speed. The rotating motion of the yarn winding motor drives the two carbon fiber yarn winding reciprocating motions to complete the uniform yarn winding on the winding drum layer by layer.
The invention has the beneficial effects that:
the invention provides a brand new carbon fiber winding mechanism which can effectively wind two carbon fiber yarns simultaneously, increase the number of simultaneously wound yarns and improve the winding efficiency; simultaneously, through the matching of the rotating speeds of the wire winding motor and the winding drum motor, each carbon fiber wire can be uniformly wound on the winding drum layer by layer, the wire is prevented from being disordered and clamped during wire winding, the winding quality is high, and the winding continuity is strong.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the present invention in a first operating state.
Fig. 3 is a schematic structural view of the present invention in a second operating state.
Fig. 4 is a schematic view of the mounting structure of the reel of the present invention.
List of reference numerals: the wire winding machine comprises a wire winding workbench 1, a wire winding motor 2, a wire winding motor support 3, a rotary table 4, a roller bearing 5, a roller 6, a reel motor support 7, a reel motor 8, a reel bottom plate 9, a reel bottom plate bump 9-1, a reel shaft 10, a reel 11, a reel through hole 11-1, a reel connecting hole 11-2, a reel connecting plate 12, a reel connecting plate bump 12-1 and a reel connecting plate shaft hole 12-2.
Detailed Description
In order to make the technical scheme of the invention clearer and clearer, the invention is further described with reference to the accompanying drawings, and any scheme obtained by carrying out equivalent replacement and conventional reasoning on the technical characteristics of the technical scheme of the invention falls into the protection scope of the invention. The fixed connection, the fixed arrangement and the fixed structure mentioned in the embodiment are all known technologies known to those skilled in the art, such as concrete one-time casting molding and welding. The wire winding motor adopts a common direct-current torque servo motor, and can realize low-speed rotation; the winding drum motor is produced by Shanghai nut-resistant reducer company Limited and is of a R17 helical gear reducer type; all the articles are directly available on the market, and the working principle of the articles is well known in the art, and the detailed description thereof is omitted in the present invention.
The attached drawing shows that the high-efficiency wire winding mechanism of the special wire winding machine for carbon fiber production comprises a wire winding workbench 1, a wire winding motor 2, a wire winding motor support 3, a rotary table 4, a roller bearing 5, a roller 6, a winding drum motor support 7, a winding drum motor 8, a winding drum bottom plate 9, a winding drum shaft 10, a winding drum 11 and a winding drum connecting plate 12, wherein the wire winding motor 3 is arranged on one side of the surface of the wire winding workbench 1, the bottom end of the wire winding motor support 2 is fixedly connected with the upper surface of the wire winding workbench 1 through a fastener, and the top end of the wire winding motor support 2 is fixedly connected with the wire winding motor 3 through a fastener; the rotary table 4 is of a disc-shaped structure, the rotary table 4 is arranged on one side of the wire winding motor 3, and one side face of the rotary table 4 is vertically and fixedly connected with the wire winding motor 3; the number of the roller bearings 5 is two, each roller bearing 5 is arranged at two ends of the other side surface of the turntable 4, and one end of each roller bearing 5 is vertically and fixedly connected with the turntable 4; the roller 6 is arranged at the other end of the roller bearing 5, and the roller 6 is rotatably connected with the roller bearing 5 through a shaft; the winding drum motor support 7 is arranged on one side of the bottom surface of the wire winding workbench 1, and the winding drum motor support 7 is fixedly connected with the wire winding workbench 1 through a fastener; the winding drum motor 8 is arranged on the upper surface of the winding drum motor support 7, the winding drum motor 8 is fixedly connected with the winding drum motor support 7 through a fastener, the winding drum bottom plate 9 is of a disc-shaped structure, a winding drum bottom plate bump 9-1 is arranged on the upper surface of the winding drum bottom plate 9, the winding drum shaft 10 is vertically arranged in the center of the upper surface of the winding drum bottom plate 9 and is of an integrated structure, the winding drum bottom plate 9 is arranged on the upper surface of the yarn winding workbench 1, and the top end of the winding drum motor 8 penetrates through the yarn winding workbench 1 and is vertically and fixedly connected with the lower surface of the winding drum bottom plate; the number of the winding drums 11 is two, the centers of the winding drums 11 are of hollow structures to form winding drum through holes 11-1, and winding drum connecting holes 11-2 are circumferentially formed in the top surfaces and the bottom surfaces of the winding drums 11; the winding drum 11 is arranged on the winding drum bottom plate 9, the winding drum shaft 10 penetrates through the winding drum through hole 11-1 and is clamped into the winding drum bottom plate bump 9-1 through the winding drum connecting hole 11-2, and the winding drum 11 is fixedly connected with the winding drum bottom plate 9; the reel connecting plate 12 is of a disc-shaped structure, a reel connecting plate shaft hole 12-2 is formed in the center of the reel connecting plate 12, and reel connecting plate lugs 12-1 are arranged on the upper surface and the lower surface of the reel connecting plate 12; the winding drum 12 is clamped into the winding drum connecting plate bump 12-1 through the winding drum connecting hole 11-2, and fixed connection with the winding drum connecting plate 12 is achieved.
Furthermore, the number of the drum bottom plate bumps 9-1 is four, each drum bottom plate bump 9-1 is circumferentially arranged on the upper surface of the drum bottom plate 9, and each drum bottom plate bump 9-1 is vertically and fixedly connected with the drum bottom plate 9 to form an integrated structure.
Further, the number of the reel connecting plate protrusions 12-1 on each side of the reel connecting plate 12 is four, and each reel connecting plate protrusion 12-1 is circumferentially arranged on the surface of the reel connecting plate 12.
Further, the position of the drum bottom plate bump 9-1 is matched with the position of the drum connecting hole 11-2, and the position of the drum connecting plate bump 12-1 on each side is matched with the position of the drum connecting hole 11-2.
Furthermore, the height of the two reels 11 is adapted to the distance between the two rollers 6.
The working principle of the invention is as follows:
when the yarn collecting mechanism works, two carbon fiber yarns are conveyed to the yarn collecting mechanism through the yarn guide mechanism, slide on the roller 6 and are wound on the winding drums 11 on the upper side and the lower side through the rotating action of the winding drum motor 8. The rotating speed of the wire winding motor 2 and the rotating speed of the winding drum motor 8 are well adjusted to be matched. When the filament winding motor 2 rotates to drive the turntable to rotate 4 to the position shown in the attached drawing 2, the rollers 6 are arranged at the upper end and the lower end of the turntable 4, the filament winding motor 2 rotates to drive the turntable 4 to rotate slowly, the carbon fiber filaments rotate by matching with the winding drum motor 8, the carbon fiber filaments slide over the rollers 6, and the two carbon fiber filaments are wound on respective winding drums 11 from the upper end to the lower end at a constant speed towards the middle. When the turntable 4 rotates to the position shown in the attached drawing 3, the rollers 6 are arranged at the left end and the right end of the turntable 4, and two carbon fiber wires are wound to the middle positions of the two winding drums 11, so that the uniform winding of a layer of carbon fiber wires on the winding drums 11 is completed; and then the yarn collecting motor 2 continues to rotate, and two carbon fiber yarns are wound on the respective winding drums 11 from the middle to the upper end and the lower end at a constant speed. The rotation of the yarn winding motor 2 drives the two carbon fiber yarn winding reciprocating motions to complete the uniform yarn winding on the winding drum 11 layer by layer.
The invention has the beneficial effects that:
the invention provides a brand new carbon fiber winding mechanism which can effectively wind two carbon fiber yarns simultaneously, increase the number of simultaneously wound yarns and improve the winding efficiency; simultaneously, through the matching of the rotating speeds of the wire winding motor and the winding drum motor, each carbon fiber wire can be uniformly wound on the winding drum layer by layer, the wire is prevented from being disordered and clamped during wire winding, the winding quality is high, and the winding continuity is strong.
Claims (5)
1. The high-efficiency wire winding mechanism of the special wire winding machine for carbon fiber production is characterized by comprising a wire winding workbench, a wire winding motor support, a turntable, a roller bearing, a roller, a winding drum motor support, a winding drum motor, a winding drum bottom plate, a winding drum shaft, a winding drum and a winding drum connecting plate, wherein the wire winding motor is arranged on one side of the surface of the wire winding workbench; the rotary disc is of a disc-shaped structure, the rotary disc is arranged on one side of the wire winding motor, and one side face of the rotary disc is vertically and fixedly connected with the wire winding motor; the number of the roller bearings is two, each roller bearing is arranged at two ends of the other side face of the turntable, and one end of each roller bearing is vertically and fixedly connected with the turntable; the roller is arranged at the other end of the roller bearing and is rotationally connected with the roller bearing through a shaft; the winding drum motor support is arranged on one side of the bottom surface of the wire winding workbench and is fixedly connected with the wire winding workbench through a fastener; the winding drum motor is arranged on the upper surface of the winding drum motor support, the winding drum motor is fixedly connected with the winding drum motor support through a fastener, the winding drum bottom plate is of a disc-shaped structure, a winding drum bottom plate bump is arranged on the upper surface of the winding drum bottom plate, the winding drum shaft is vertically arranged in the center of the upper surface of the winding drum bottom plate and is of an integrated structure, the winding drum bottom plate is arranged on the upper surface of the wire winding workbench, and the top end of the winding drum motor penetrates through the wire winding workbench and is vertically and fixedly connected with the lower surface of the winding drum bottom; the number of the winding drums is two, the centers of the winding drums are of hollow structures to form winding drum through holes, and winding drum connecting holes are formed in the circumferential directions of the top surface and the bottom surface of each winding drum; the winding drum is arranged on the winding drum bottom plate, the winding drum shaft penetrates through the winding drum through hole and is clamped into the winding drum bottom plate bump through the winding drum connecting hole, and the winding drum is fixedly connected with the winding drum bottom plate; the winding drum connecting plate is of a disc-shaped structure, a winding drum connecting plate shaft hole is formed in the center of the winding drum connecting plate, and winding drum connecting plate lugs are arranged on the upper surface and the lower surface of the winding drum connecting plate; the winding drum is clamped into the winding drum connecting plate lug through the winding drum connecting hole, and the winding drum is fixedly connected with the winding drum connecting plate.
2. The take-up mechanism of the take-up machine special for efficient carbon fiber production as claimed in claim 1, wherein the number of the drum bottom plate projections is four, each drum bottom plate projection is circumferentially disposed on the upper surface of the drum bottom plate, and each drum bottom plate projection is vertically and fixedly connected with the drum bottom plate, and is of an integrated structure.
3. The take-up mechanism of the take-up machine special for efficient carbon fiber production as claimed in claim 1, wherein the number of the drum connecting plate protrusions on each side of the drum connecting plate is four, and each drum connecting plate protrusion is circumferentially arranged on the surface of the drum connecting plate.
4. The take-up mechanism of the take-up machine special for high-efficiency carbon fiber production as claimed in claim 1, wherein the position of the lug of the drum bottom plate is matched with the position of the drum connecting hole, and the position of the lug of the drum connecting plate on each side is matched with the position of the drum connecting hole.
5. The take-up mechanism of the take-up machine special for high-efficiency carbon fiber production as claimed in claim 1, wherein the heights of the two winding drums are adapted to the distance between the two rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910210709.7A CN109941823B (en) | 2019-03-20 | 2019-03-20 | Efficient carbon fiber production special use is received silk machine and is received silk mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910210709.7A CN109941823B (en) | 2019-03-20 | 2019-03-20 | Efficient carbon fiber production special use is received silk machine and is received silk mechanism |
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| Publication Number | Publication Date |
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| CN109941823A CN109941823A (en) | 2019-06-28 |
| CN109941823B true CN109941823B (en) | 2020-10-23 |
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| CN201910210709.7A Active CN109941823B (en) | 2019-03-20 | 2019-03-20 | Efficient carbon fiber production special use is received silk machine and is received silk mechanism |
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| CN114678676B (en) * | 2022-04-22 | 2023-02-14 | 西安电子科技大学 | Satellite-borne spiral antenna unfolding structure based on opening circular tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20140070043A1 (en) * | 2012-09-13 | 2014-03-13 | Ralph Naipany | System And Method For Multiple Layer Coil Winding |
| CN104261202B (en) * | 2014-09-17 | 2017-07-11 | 绍兴精功机电有限公司 | Carbon fiber automatically continuously winds receipts silk device |
| CN204369284U (en) * | 2014-12-29 | 2015-06-03 | 安徽华宝电缆有限责任公司 | Rotary cable strand oscillator |
| CN205274871U (en) * | 2015-11-24 | 2016-06-01 | 重庆金优元建材有限公司 | Spooler for engineering |
| CN205312761U (en) * | 2015-12-03 | 2016-06-15 | 国家电网公司 | Automatic power earth line winding device |
| CN207108090U (en) * | 2017-07-04 | 2018-03-16 | 常州三立精图光电有限公司 | A kind of cable wire winding device |
| CN107555245A (en) * | 2017-07-18 | 2018-01-09 | 响水文昊纺织品有限公司 | A kind of volume yarn feeding device for colour-spun yarns |
| CN207078824U (en) * | 2017-07-20 | 2018-03-09 | 天津山旗线缆有限公司 | Double cable take-up |
| CN108423482A (en) * | 2017-08-03 | 2018-08-21 | 东华大学 | A kind of fully automatic high-speed reel |
| CN109422131A (en) * | 2017-09-05 | 2019-03-05 | 盐城市峻珑纱线有限公司 | A kind of uniform coil winding machine of coiling |
| CN207890803U (en) * | 2017-12-16 | 2018-09-21 | 常熟市长江胶带有限公司 | Wind for adhesive tape production |
| CN208557646U (en) * | 2018-08-01 | 2019-03-01 | 四川特旺通信科技有限公司 | Cutting device is used in a kind of production of special despatch optical fiber cable |
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Effective date of registration: 20231122 Address after: 712000 Factory Buildings 8 and 9, Yongchang Road Emerging Industry Base, High tech Zone, Qindu District, Xingping City, Xianyang City, Shaanxi Province Patentee after: Shaanxi Tianheng Sky New Material Co.,Ltd. Address before: 301707 Block 103-10 (Centralized Office District), East Side Development Center, Zhongji Road, Douzhangzhuang Township, Wuqing District, Tianjin Patentee before: YINGHONGNAMI Corp. |
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