CN112296210B - Tool for bending diode pins - Google Patents
Tool for bending diode pins Download PDFInfo
- Publication number
- CN112296210B CN112296210B CN202011070495.7A CN202011070495A CN112296210B CN 112296210 B CN112296210 B CN 112296210B CN 202011070495 A CN202011070495 A CN 202011070495A CN 112296210 B CN112296210 B CN 112296210B
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- 238000005452 bending Methods 0.000 title claims abstract description 33
- 238000009434 installation Methods 0.000 claims description 8
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 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
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
- B21F1/004—Bending wire other than coiling; Straightening wire by means of press-type tooling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The invention discloses a tool for bending diode pins, which belongs to the technical field of diode processing equipment and comprises a base, wherein a workbench is fixedly arranged on the outer wall of the top of the base, an electric telescopic rod is fixedly arranged at the bottom of an inner cavity of the workbench, the top end of the electric telescopic rod is fixedly connected with a supporting plate, the outer walls of the front side and the rear side of the supporting plate are respectively attached to the inner walls of the front side and the rear side of the workbench, a mounting frame is fixedly arranged on the outer wall of the left side of the top of the workbench, a pressing device is arranged on the outer wall of the left side of the mounting frame, a pressing plate is moved downwards in the device, so that a right pressing block swings around the hinged position of the right pressing block and the workbench, the diode pins are bent, the right pressing block swings along with the bending of the diode pins in the bending process, the contact area between the right pressing block and the diode pins cannot be reduced, the local stress increase of the diode pins caused by the gradual reduction of the contact area is avoided, and the probability of the damage to the diode pins during the bending is reduced.
Description
Technical Field
The invention relates to the technical field of diode processing equipment, in particular to a tool for bending a pin of a diode.
Background
The diode is an electronic device made of semiconductor materials, the pin of the diode needs to be bent before the diode is installed and used, the diode is placed on a workbench of a tool and fixed when the tool for bending the pin of the diode is used for machining the diode, the pin of the diode is pressed and bent by moving a pressing device such as a pressing plate or a pressing block downwards, however, the pin of the diode can be gradually rotated and bent in the bending process, the bottom of the pressing plate or the pressing block is generally horizontal, the pressing plate or the pressing block is fixedly installed, the contact area between the pin and the pressing plate or the pressing block can be gradually reduced in the bending process, the pressing pressure of the pressing plate or the pressing block is unchanged, the pressure of the pressing plate or the pressing block on the local area of the pin of the diode can be gradually increased, and the pin of the diode is easily damaged, and therefore, the tool for bending the pin of the diode is provided.
Disclosure of Invention
The invention aims to provide a tool for bending a diode pin so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a frock for bending diode pin, includes the base, base top outer wall fixed mounting has the workstation, workstation inner chamber bottom fixed mounting has electric telescopic handle, electric telescopic handle top and layer board fixed connection, and both sides outer wall laminate with workstation front and back both sides inner wall respectively around the layer board mutually, workstation top left side outer wall fixed mounting has the mounting bracket, mounting bracket left side outer wall is provided with and pushes down the device, push down device right side outer wall and carriage release lever fixed connection, the carriage release lever right-hand member runs through the mounting bracket, the shifting chute has been seted up at the position of being connected of mounting bracket and carriage release lever, and fixed mounting has supporting spring between shifting chute bottom inner wall and the carriage release lever bottom outer wall.
Preferably, the lower pressing device comprises a lower pressing plate fixedly connected with the left end of the moving rod, a pressing rod is arranged on the outer wall of the bottom of the lower pressing plate, a right pressing block is hinged to the bottom end of the pressing rod, the outer walls of the front side and the rear side of the right pressing block are hinged to the outer wall of the top of the left side of the workbench, a sliding groove is formed in the outer wall of the bottom of the lower pressing plate, and the top end of the pressing rod is slidably inserted into an inner cavity of the sliding groove.
Preferably, right side briquetting left side outer wall is provided with left briquetting, left side briquetting top outer wall fixed mounting has the connecting block, and the connecting block top is provided with the connecting rod, connecting rod bottom right side outer wall rotates with the commentaries on classics piece to be connected, commentaries on classics piece bottom outer wall fixed mounting has the bolt, screw has been seted up to right side briquetting top outer wall, and the bolt is located the inner chamber of screw.
Preferably, the connecting rod includes the swivel nut of being connected with commentaries on classics piece top outer wall rotation, swivel nut inner chamber left side spiro union has the screw rod, and connecting block top outer wall fixed mounting has the lantern ring, and the lantern ring cover is on the outer wall of screw rod, and lantern ring inner wall and screw rod outer wall rotation are connected, trompil has been seted up to left side briquetting left side outer wall, and the trompil inner chamber runs through to peg graft and has the guide bar, guide bar right-hand member and inserted block fixed connection, the slot has been seted up to right side briquetting left side outer wall, and the inserted block is arranged in the inner chamber of slot.
Preferably, the depression bar includes the depression bar body with right briquetting top outer wall articulated, depression bar body top outer wall fixed mounting has the threaded rod, the threaded rod outer wall has cup jointed the rotating sleeve, the internal thread has been seted up with the connecting portion of threaded rod to the rotating sleeve, rotating sleeve top outer wall rotates with the installation piece to be connected, the installation piece slides and inserts in the inner chamber of spout.
Preferably, the outer wall of the top of the lower pressing plate is slidably provided with a moving block, the outer wall of the left side of the top of the moving block is provided with a threaded hole, a fixing bolt is screwed on the top end of an inner cavity of the threaded hole, the outer wall of the right side of the top of the moving block is inserted with a stop block in a penetrating and inserting mode, the outer wall of the top of the stop block is fixedly connected with a guide block, the left end of the guide block is fixedly connected with an installation sleeve, the installation sleeve is rotatably sleeved on the outer wall of the fixing bolt, the inner wall of the top of the sliding groove is provided with a sliding groove, and the bottom end of the guide block is inserted into the inner cavity of the sliding groove.
Compared with the prior art, the invention has the beneficial effects that:
1. the lower pressing plate is moved downwards in the device, so that the right pressing block swings with the hinged position of the right pressing block and the workbench as the center of a circle to bend the diode pin, the right pressing block swings along with the bending of the diode pin in the bending process, the contact area of the right pressing block and the diode pin cannot be reduced, the local area of the diode pin is prevented from being stressed and increased due to the fact that the contact area is gradually reduced, and the probability of damage to the diode pin in the bending process is reduced;
2. the left pressing block is arranged on the right side of the right pressing block and is contacted with the diode pin through the left pressing block and the right pressing block, so that the contact area of the left pressing block and the diode pin is increased, the pressure on the diode pin is shared by other areas, the pressure on the local area of the diode pin is reduced, and the probability of damage to the diode pin during bending is further reduced;
3. the screw rod is rotated to enable the screw rod to drive the left pressing block to move leftwards, the distance between the left pressing block and the right pressing block can be increased according to requirements, the lever principle can show that the left pressing block and the right pressing block are more convenient to bend the diode pin downwards, pressure required to be applied when the diode pin is bent is reduced, the probability of damage of the diode pin when the diode pin is bent is reduced, and the using performance of the device is increased.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection structure of the right pressing block and the left pressing block of the present invention;
FIG. 3 is an enlarged view of the structure at the position A;
FIG. 4 is a schematic view of the structure of the compression bar of the present invention.
In the figure: 1. a base; 2. a work table; 3. an electric telescopic rod; 4. a support plate; 5. a mounting frame; 6. a pressing device; 61. pressing the plate downwards; 611. a moving block; 612. fixing the bolt; 613. a stopper; 614. a guide block; 62. a pressure lever; 621. a compression bar body; 622. a threaded rod; 623. rotating the sleeve; 624. mounting a block; 63. a right pressing block; 64. a chute; 65. a left pressing block; 651. a guide rod; 652. inserting a block; 653. a slot; 66. a connecting rod; 661. a threaded sleeve; 662. a screw; 67. rotating the block; 68. a bolt; 69. a screw hole; 7. a support spring; 8. the rod is moved.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention provides a technical scheme that: referring to fig. 1, a fixture for bending a diode pin includes a base 1;
referring to fig. 1, a workbench 2 is fixedly mounted on the outer wall of the top of a base 1, an electric telescopic rod 3 is fixedly mounted at the bottom of an inner cavity of the workbench 2, the top end of the electric telescopic rod 3 is fixedly connected with a supporting plate 4, the outer walls of the front side and the rear side of the supporting plate 4 are respectively attached to the inner walls of the front side and the rear side of the workbench 2, a diode is placed above the supporting plate 4, the electric telescopic rod 3 works to drive the supporting plate 4 to move upwards, the front side and the rear side of the supporting plate 4 are in contact with the inner walls of the front side and the rear side of the workbench 2, pins of the diode are also in contact with the inner walls of the front side and the rear side of the workbench 2 to fix the pins of the diode, the bent pins of the diode are attached to the bottom wall of a right pressing block 63, and electric equipment related to the device are electrically connected with an external power switch through wires;
referring to fig. 1, a mounting frame 5 is fixedly mounted on the outer wall of the left side of the top of a workbench 2, a pressing device 6 is arranged on the outer wall of the left side of the mounting frame 5, the outer wall of the right side of the pressing device 6 is fixedly connected with a moving rod 8, the right end of the moving rod 8 penetrates through the mounting frame 5, a moving groove is formed in the connecting portion of the mounting frame 5 and the moving rod 8, the moving rod 8 can move up and down in the inner cavity of the moving groove and is used for driving the pressing device 6 to slide up and down, and a supporting spring 7 is fixedly mounted between the inner wall of the bottom of the moving groove and the outer wall of the bottom of the moving rod 8;
referring to fig. 1, the pressing device 6 includes a pressing plate 61 fixedly connected to the left end of the moving rod 8, a pressing rod 62 is disposed on the outer wall of the bottom of the pressing plate 61, a right pressing block 63 is hinged to the bottom end of the pressing rod 62, the outer walls of the front and rear sides of the right portion of the right pressing block 63 are hinged to the outer wall of the top of the left side of the workbench 2, a sliding groove 64 is formed in the outer wall of the bottom of the pressing plate 61, the top end of the pressing rod 62 is slidably inserted into an inner cavity of the sliding groove 64, when the diode pin is bent, the pressing plate 61 is moved downward, the pressing rod 62 is moved downward, the right pressing block 63 swings around the hinge of the right pressing block 63 and the workbench 2, the diode pin below the right pressing block 63 is bent, until the pressing plate 61 moves downward and cannot move, the diode pin is bent, the right pressing block 63 swings with the diode pin, the contact area between the right pressing block 63 and the diode pin is not reduced, the local area is prevented from being reduced, the stress on the diode pin is increased, and the diode pin is prevented from being damaged during bending, and the diode processing quality is ensured;
referring to fig. 1 and 2, a left press block 65 is arranged on the outer wall of the left side of a right press block 63, a connecting block is fixedly mounted on the outer wall of the top of the left press block 65, a connecting rod 66 is arranged at the top end of the connecting block, the outer wall of the right side of the bottom of the connecting rod 66 is rotatably connected with a rotating block 67, a bolt 68 is fixedly mounted on the outer wall of the bottom of the rotating block 67, a screw hole 69 is formed in the outer wall of the top of the right press block 63, and the bolt 68 is located in an inner cavity of the screw hole 69;
referring to fig. 1 and 2, the connecting rod 66 includes a screw sleeve 661 rotatably connected to an outer wall of a top portion of the rotating block 67, a screw 662 is screwed to a left side of an inner cavity of the screw sleeve 661, a sleeve ring is fixedly installed on an outer wall of a top portion of the connecting block, the sleeve ring is sleeved on an outer wall of the screw 662, an inner wall of the sleeve ring is rotatably connected to an outer wall of the screw 662, an opening is formed in an outer wall of a left side of the left pressing block 65, a guide rod 651 is inserted into the inner cavity of the opening, a right end of the guide rod 651 is fixedly connected to an inserting block 652, a slot 653 is formed in an outer wall of a left side of the right pressing block 63, the guide rod 651 is fixed to a left side of the right pressing block 63 by a friction force of the outer wall of the inserting block 652 contacting with an inner wall of the slot 653, the left pressing block 65 slides on the outer wall of the guide rod 651 to guide a moving direction of the left pressing block 65, the screw is rotated to move the screw with the left pressing block 65 to increase a distance between the left pressing block 65 and the right pressing block 63 to reduce a pressure applied to the diode pin 662, thereby reducing a diode pin bending probability of the diode pin, and a diode pin, which the diode pin is damaged diode pin, and a diode pin bending device is damaged diode pin is reduced;
referring to fig. 1 and 4, the press rod 62 includes a press rod body 621 hinged to the outer wall of the top of the right press block 63, a threaded rod 622 is fixedly mounted on the outer wall of the top of the press rod body 621, a rotating sleeve 623 is sleeved on the outer wall of the threaded rod 622, an internal thread is formed at the connecting portion of the rotating sleeve 623 and the threaded rod 622, the outer wall of the top of the rotating sleeve 623 is rotatably connected with a mounting block 624, the mounting block 624 is slidably inserted into the inner cavity of the sliding groove 64, the rotating sleeve 623 is rotated to enable the threaded rod 622 to move upwards or downwards, the overall length of the press rod 62 is changed, it is ensured that the press rod 62 can push the right press block 63 to a predetermined area, and the bending angle of the diode pin reaches a predetermined requirement;
referring to fig. 1 and 3, a moving block 611 is slidably mounted on an outer wall of the top of the lower pressing plate 61, a threaded hole is formed in an outer wall of the left side of the top of the moving block 611, a fixing bolt 612 is screwed to the top end of an inner cavity of the threaded hole, a stop 613 is inserted into an outer wall of the right side of the top of the moving block 611, an outer wall of the top of the stop 613 is fixedly connected with a guide block 614, the left end of the guide block 614 is fixedly connected with a mounting sleeve, the mounting sleeve is rotatably sleeved on an outer wall of the fixing bolt 612, a sliding groove is formed in an inner wall of the top of the sliding groove 64, the moving block 611 is pushed leftwards or rightwards by inserting the bottom end of the guide block 614 into the inner cavity of the sliding groove, then the fixing bolt 612 is screwed to enable the fixing bolt 612 to be in contact with the top wall of the lower pressing plate 61, the moving block 611 is fixed, the bottom end of the stop 613 is inserted into the inner cavity of the sliding groove 64, the position where the pressing rod 62 moves in the sliding groove 64 is fixed, and the position where the right pressing block 63 moves downwards is limited, so that the bending angle of the diode pin can be controlled, and the usability of the device can be increased.
The working principle is as follows: when in use, the diode is placed above the supporting plate 4, the supporting plate 4 is driven to move upwards by the operation of the electric telescopic rod 3, the pin of the diode is contacted with the inner walls of the front side and the rear side of the workbench 2, the pin of the diode is fixed, the bent pin is moved to the lower part of the right pressing block 63, then the lower pressing plate 61 is moved downwards, the pressing rod 62 is moved downwards, the right pressing block 63 swings to bend the pin of the diode, the bending of the pin of the diode is completed until the lower pressing plate 61 moves downwards to be incapable of moving, the right pressing block 63 swings along with the bending of the pin of the diode in the bending process, the contact area between the right pressing block 63 and the pin of the diode is not reduced, and the increase of the stress of the local area of the pin of the diode due to the gradual reduction of the contact area is avoided, the probability of damage to the diode pins during bending is reduced, in the process of bending the diode pins, the left pressing block 65 can be moved to the left side of the right pressing block 63, the bolt 68 is inserted into the screw hole 69, the rotating block 67 is rotated to enable the bolt 68 to enter the inner cavity of the screw hole 69, the left pressing block 65 is installed on the right side of the right pressing block 63, in the process of bending the diode pins, the left pressing block 65 and the right pressing block 63 are in contact with the diode pins together, the contact area of the diode pins is increased, the pressure on the diode pins is shared by other areas, the pressure on the local areas of the diode pins is reduced, and the probability of damage to the diode pins during bending is further reduced.
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 (3)
1. The utility model provides a frock for bending diode pin, includes base (1), its characterized in that: the automatic lifting device is characterized in that a workbench (2) is fixedly mounted on the outer wall of the top of the base (1), an electric telescopic rod (3) is fixedly mounted at the bottom of the inner cavity of the workbench (2), the top end of the electric telescopic rod (3) is fixedly connected with a supporting plate (4), the outer walls of the front side and the rear side of the supporting plate (4) are respectively attached to the inner walls of the front side and the rear side of the workbench (2), a mounting rack (5) is fixedly mounted on the outer wall of the left side of the top of the workbench (2), a pressing device (6) is arranged on the outer wall of the left side of the mounting rack (5), the outer wall of the right side of the pressing device (6) is fixedly connected with a moving rod (8), and the right end of the moving rod (8) penetrates through the mounting rack (5), a moving groove is formed in the connecting part of the mounting frame (5) and the moving rod (8), a supporting spring (7) is fixedly mounted between the inner wall of the bottom of the moving groove and the outer wall of the bottom of the moving rod (8), the pressing device (6) comprises a lower pressing plate (61) fixedly connected with the left end of the moving rod (8), a pressing rod (62) is arranged on the outer wall of the bottom of the lower pressing plate (61), a right pressing block (63) is hinged to the bottom of the pressing rod (62), the outer walls of the front side and the rear side of the right part of the right pressing block (63) are hinged to the outer wall of the top of the left side of the workbench (2), a sliding groove (64) is formed in the outer wall of the bottom of the lower pressing plate (61), the top end of the pressing rod (62) is slidably inserted into an inner cavity of the sliding groove (64), the pressing rod (62) comprises a pressing rod body (621) hinged to the outer wall of the top of the right pressing block (63), a threaded rod (622) is fixedly mounted on the outer wall of the top of the pressing rod body (621), a rotating sleeve (623) is sleeved on the outer wall of the threaded rod (622), an internal thread is formed in the connecting portion of the rotating sleeve (623) and the threaded rod (622), the outer wall of the top of the rotating sleeve (623) is rotatably connected with an installation block (624), the installation block (624) is inserted into an inner cavity of a sliding groove (64) in a sliding mode, a moving block (611) is installed on the outer wall of the top of the lower pressing plate (61) in a sliding mode, a threaded hole is formed in the outer wall of the left side of the top of the moving block (611), a fixing bolt (612) is screwed to the top end of the inner cavity of the threaded hole, a stop block (613) is inserted into the outer wall of the right side of the top of the sliding groove (64), the outer wall of the top of the stop block (613) is fixedly connected with a guide block (614), the left end of the guide block (614) is fixedly connected with the installation sleeve, and the installation sleeve is rotatably sleeved on the outer wall of the fixing bolt (612).
2. The tool for bending the pin of the diode according to claim 1, wherein the tool comprises: right side briquetting (63) left side outer wall is provided with left briquetting (65), left side briquetting (65) top outer wall fixed mounting has the connecting block, and the connecting block top is provided with connecting rod (66), connecting rod (66) bottom right side outer wall rotates with commentaries on classics piece (67) to be connected, change piece (67) bottom outer wall fixed mounting have bolt (68), screw (69) have been seted up to right side briquetting (63) top outer wall, and bolt (68) are located the inner chamber of screw (69).
3. The tool for bending the diode pin according to claim 2, wherein the tool comprises: connecting rod (66) include with commentaries on classics piece (67) top outer wall rotate swivel nut (661) of being connected, swivel nut (661) inner chamber left side spiro union has screw rod (662), and connecting block top outer wall fixed mounting has the lantern ring, and the lantern ring cover is on the outer wall of screw rod (662), and lantern ring inner wall and screw rod (662) outer wall rotation are connected, trompil has been seted up to left side briquetting (65) left side outer wall, and the trompil inner chamber runs through to be pegged graft and has guide bar (651), guide bar (651) right-hand member and inserted block (652) fixed connection, slot (653) have been seted up to right side briquetting (63) left side outer wall, and inserted block (652) are located the inner chamber of slot (653).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011070495.7A CN112296210B (en) | 2020-10-09 | 2020-10-09 | Tool for bending diode pins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011070495.7A CN112296210B (en) | 2020-10-09 | 2020-10-09 | Tool for bending diode pins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112296210A CN112296210A (en) | 2021-02-02 |
| CN112296210B true CN112296210B (en) | 2022-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011070495.7A Active CN112296210B (en) | 2020-10-09 | 2020-10-09 | Tool for bending diode pins |
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| CN (1) | CN112296210B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117000917B (en) * | 2023-10-07 | 2023-12-19 | 四川华体照明科技股份有限公司 | LED module connecting wire welding device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289627A (en) * | 2013-07-18 | 2015-01-21 | 河南省安耐德电力设备有限公司 | Steel bar bending device |
| CN106994492A (en) * | 2017-06-08 | 2017-08-01 | 扬州市飞鹰电子科技有限公司 | A kind of new full-automatic draw point bender of three coordinated types |
| CN108405667B (en) * | 2018-01-17 | 2019-11-12 | 南京邮电大学 | A kind of auxiliary bending robot of energy two workpiece of simultaneous processing |
| CN109127950B (en) * | 2018-09-19 | 2020-01-21 | 河南永益同丰智能科技有限公司 | Bending device for processing reinforcing steel bars and using method thereof |
| CN209206133U (en) * | 2018-11-16 | 2019-08-06 | 佛山市南海区轩成五金制品有限公司 | A kind of apparatus for bending of five golden plate of metal |
| CN209174629U (en) * | 2018-11-23 | 2019-07-30 | 湖北亿航新材科技有限公司 | A kind of sheet metal component apparatus for bending |
| CN210358675U (en) * | 2019-07-28 | 2020-04-21 | 苏州市龙神铝制品有限公司 | But aluminum product angle regulation's processingequipment that buckles |
| CN210847781U (en) * | 2019-10-10 | 2020-06-26 | 佛山市南海铭皇制冷设备有限公司 | Bending device for bending sheet metal part |
| CN111702043B (en) * | 2020-06-28 | 2022-06-03 | 重庆电子工程职业学院 | Plate bending equipment |
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Effective date of registration: 20221111 Address after: 518016 21A, Unit B, Building 1, Dakang Fuyingmen Building, east of Futian Road, Futian Street, Futian District, Shenzhen, Guangdong Applicant after: Shenzhen Bingxu Technology Co.,Ltd. Address before: 473000 Nanyang science and Technology Industrial Park, Zhongguancun, 100 meters east of Jingshi Road, Wancheng District, Nanyang City, Henan Province Applicant before: Xu Xinchao |
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