CN210062153U - Stamping device is used in new material production with buffer function - Google Patents
Stamping device is used in new material production with buffer function Download PDFInfo
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- CN210062153U CN210062153U CN201920493400.9U CN201920493400U CN210062153U CN 210062153 U CN210062153 U CN 210062153U CN 201920493400 U CN201920493400 U CN 201920493400U CN 210062153 U CN210062153 U CN 210062153U
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Abstract
The utility model discloses a stamping device is used in new material production with buffer function relates to new material production apparatus technical field, and it includes the support plate, all is connected with the lower fixed surface of two curb plates respectively with the left and right sides face of support plate upper surface to the upper surface of two curb plates all is connected with the lower fixed surface of roof, all with the lower surface of roof and the top fixed connection of hydraulic cylinder, and the bottom of hydraulic cylinder is connected with the upper fixed surface of first backup pad. This stamping device is used in new material production with buffer function, through setting up the support plate, the curb plate, the roof, hydraulic cylinder, first backup pad, remove the mould, first screw hole, threaded rod, second screw hole, fixed mould, third screw hole, cooling plate, screw thread post, buffer, second backup pad, power and first switch, because spring self has elasticity for decurrent impact force can obtain the buffering, thereby avoids the material to cause the damage under too big punching.
Description
Technical Field
The utility model relates to a new material production apparatus technical field specifically is a stamping device is used in new material production with buffer function.
Background
The new material refers to a structural material with excellent performance and a functional material with special properties which are newly developed or are being developed, and the structural material mainly utilizes the mechanical properties of the structural material, such as strength, toughness, hardness, elasticity and the like.
In the production manufacturing process of new material, there is some material shaping to need to carry out the punching press, but current stamping device is mostly directly to carry out the punching press, and the device body does not have buffer for the material causes the damage easily under too big punching press, and the lower mould is generating heat easily under long-time punching press simultaneously, thereby influences stamping material's precision.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a stamping device is used in new material production with buffer function has solved current stamping device and has mostly directly carried out the punching press, and the device body does not have buffer for the material causes the damage easily under too big punching press, and the lower mould generates heat easily under long-time punching press simultaneously, thereby influences the problem of punching press material precision.
(II) technical scheme
In order to achieve the above purpose, the utility model adopts the technical proposal that: a stamping device with a buffer function for producing new materials comprises a carrier plate, wherein the left side surface and the right side surface of the upper surface of the carrier plate are respectively fixedly connected with the lower surfaces of two side plates, the upper surfaces of the two side plates are fixedly connected with the lower surface of the top plate, the lower surface of the top plate is fixedly connected with the top end of the hydraulic cylinder, the bottom end of the hydraulic cylinder is fixedly connected with the upper surface of the first supporting plate, four corners of the upper surface of the first supporting plate are respectively clamped with a sliding sleeve, the sliding sleeve is connected on the sliding rod in a sliding way, the bottom end of the sliding rod is fixedly connected with the upper surface of the support plate, the lower surface of the first support plate is lapped with the upper surface of the movable mould, and the four corners of the lower surface of the movable die are respectively provided with a first threaded hole, the first threaded holes are internally threaded with a threaded rod, and the top of threaded rod passes first screw hole and threaded connection in the second screw hole that first backup pad lower surface was seted up.
The movable die is characterized in that a fixed die is arranged under the movable die, the lower surface of the fixed die is in lap joint with the upper surface of the cooling plate, a third threaded hole is formed in the lower surface of the fixed die, a threaded column is connected to the thread hole in an internal thread manner, the bottom end of the threaded column is fixedly connected with the upper surface of the cooling plate, a cooling groove is formed in the cooling plate, the lower surface of the inner wall of the cooling groove is high in the left and low in the right, the lower surface of the cooling plate is fixedly connected with the upper surface of the second supporting plate through four buffering devices, the four buffering devices are respectively located at four corners of the lower surface of the cooling plate, the lower surface of the second supporting plate is fixedly connected with the upper surface of the supporting plate through four electric push rods, and the four electric push rods.
The upper surface of support plate is provided with the drawing liquid device to the liquid outlet of drawing liquid device is linked together with the one end of transfer line, and the transfer line is the flexible hose, the other end of transfer line passes the first pipe box of left side curb plate left surface joint and communicates with the left end of feed liquor pipe, and the right-hand member of feed liquor pipe is linked together with the left surface of cooling bath, the right flank of cooling bath communicates with the left end of drain pipe, and the right-hand member of drain pipe is linked together with the one end of accumulator, and the accumulator is also the flexible hose, the other end of accumulator passes the second pipe box of right side curb plate left surface joint and is linked together with the upper surface of box, and the lower surface of box and the upper surface overlap joint of support plate.
Preferably, the movable die comprises an upper die base, the upper surface of the upper die base is in lap joint with the lower surface of the first supporting plate, first threaded holes are formed in four corners of the lower surface of the upper die base, the lower surface of the upper die base is fixedly connected with the upper surface of the male die, and the male die corresponds to the fixed die.
Preferably, the fixing mold comprises a lower mold base, a third threaded hole is formed in the lower surface of the lower mold base, a female mold is fixedly connected to the upper surface of the lower mold base, and the female mold corresponds to the male mold in position.
Preferably, the buffering device comprises a telescopic rod, the outer surface of the telescopic rod is sleeved with a spring, the bottom ends of the telescopic rod and the spring are fixedly connected with the lower surface of the cooling plate, and the bottom ends of the telescopic rod and the spring are fixedly connected with the upper surface of the second supporting plate.
Preferably, the liquid pumping device comprises a water pump, the lower surface of the water pump is fixedly connected with the upper surface of the support plate, a liquid pumping port of the water pump is communicated with the right end of the liquid pumping pipe, and a liquid outlet of the water pump is communicated with one end of the liquid conveying pipe.
Preferably, a power supply is arranged on the left side surface of the side plate, and a first switch, a second switch and a third switch are sequentially arranged on the left side surface of the power supply from top to bottom.
Preferably, the output end of the power supply is electrically connected with the input ends of the first switch, the second switch and the third switch through conducting wires, the output end of the first switch is electrically connected with the input end of the hydraulic cylinder through conducting wires, the output end of the second switch is electrically connected with the input end of the electric push rod through conducting wires, and the output end of the third switch is electrically connected with the input end of the water pump through conducting wires.
(III) advantageous effects
The beneficial effects of the utility model reside in that:
1. this stamping device is used in new material production with buffer function, through setting up the support plate, the curb plate, the roof, hydraulic cylinder, first backup pad, remove the mould, first screw hole, the threaded rod, the second screw hole, fixed mould, the third screw hole, the cooling plate, the screw thread post, buffer, the second backup pad, power and first switch, when carrying out the punching press impact force to the new material too big, the terrace die can promote the die downwards, the die drives the cooling plate compression spring downwards, when the terrace die left, the elasticity of spring self has driven the cooling plate rebound, thereby make the die resume initial position, because spring self has elasticity, make decurrent impact force can obtain the buffering, thereby avoid the material to cause the damage under too big punching press.
2. This stamping device is used in new material production with buffer function, through setting up electric putter and second switch, when carrying out the punching press to different materials, the workman passes through second switch control electric putter work, and electric putter work drives the second backup pad and removes, and the second backup pad removes and drives cooling plate and fixed mould through buffer and removes to the distance between messenger can be according to different adjustment die of punching press material and the terrace die, makes the punching press effect reach the best.
3. This stamping device is used in new material production with buffer function, through setting up sliding sleeve and slide bar, when hydraulic cylinder drove first backup pad and removes for first backup pad can be the motion along the slide bar, makes first backup pad and upper die base can not take place the displacement in the motion, makes the precision of punching press obtain improving.
4. This stamping device is used in new material production with buffer function, through setting up the cooling bath, the drawing liquid device, the transfer line, first pipe box, feed liquor pipe and third switch, when the punching press, the workman passes through third switch control water pump work, water pump work is taken the coolant liquid out through the liquid suction pipe, then carry the coolant liquid into the cooling bath through transfer line and feed liquor pipe, make the coolant liquid can cool off the cooling plate, thereby cool down fixed mould, thereby avoid the die to rise along with the temperature and influence the precision of punching press.
5. This stamping device is used in new material production with buffer function, through setting up drain pipe, collector tube, second pipe box and box, the coolant liquid passes in and out the cooling bath through the drain pipe flow, then flows into in the box by drain pipe and collector tube to make the coolant liquid can utilize once more, thereby improve the utilization ratio of coolant liquid, the waste of reducible coolant liquid.
Drawings
Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;
fig. 2 is an enlarged schematic structural view at a2 of the present invention;
fig. 3 is an enlarged schematic structural diagram of the utility model at a 1.
In the figure: the device comprises a support plate 1, a side plate 2, a top plate 3, a hydraulic cylinder 4, a first support plate 5, a movable die 6, an upper die base 61, a male die 62, a first threaded hole 7, a threaded rod 8, a second threaded hole 9, a fixed die 10, a lower die base 101, a female die 102, a third threaded hole 11, a cooling plate 12, a threaded column 13, a cooling groove 14, a buffer device 15, a telescopic rod 151, a spring 152, a second support plate 16, an electric push rod 17, a sliding sleeve 18, a sliding rod 19, a liquid pumping device 20, a water pump 201, a liquid pumping pipe 202, a liquid conveying pipe 21, a first pipe sleeve 22, a liquid inlet pipe 23, a liquid outlet pipe 24, a recovery pipe 25, a second pipe sleeve 26, a box body 27, a power supply 28, a first switch 29, a second switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the utility model provides a technical solution: a stamping device with a buffering function for new material production comprises a carrier plate 1, wherein the left side surface and the right side surface of the upper surface of the carrier plate 1 are respectively and fixedly connected with the lower surfaces of two side plates 2, the upper surfaces of the two side plates 2 are respectively and fixedly connected with the lower surface of a top plate 3, a power supply 28 is arranged on the left side surface of each side plate 2, a first switch 29, a second switch 30 and a third switch 31 are sequentially arranged on the left side surface of each power supply 28 from top to bottom, the first switch 29, the second switch 30 and the third switch 31 are arranged to enable the first switch 29, the second switch 30 and the third switch 31 to respectively control a hydraulic cylinder 4, an electric push rod 17 and a water pump 201 to work, so that the operation of workers is facilitated, the output end of the power supply 28 is respectively and electrically connected with the input ends of the first switch 29, the second switch 30 and the third switch 31 through leads, and the output end of the first switch, the output end of the second switch 30 is electrically connected with the input end of the electric push rod 17 through a wire, the output end of the third switch 31 is electrically connected with the input end of the water pump 201 through a wire, the lower surface of the top plate 3 is fixedly connected with the top end of the hydraulic cylinder 4, the bottom end of the hydraulic cylinder 4 is fixedly connected with the upper surface of the first support plate 5, the hydraulic cylinder 4 is arranged to provide power for the movement of the upper die base 61, so that the upper die base 61 can move, the four corners of the upper surface of the first support plate 5 are all clamped with the sliding sleeves 18, the sliding sleeves 18 are slidably connected on the sliding rods 19, the bottom end of the sliding rods 19 is fixedly connected with the upper surface of the support plate 1, the first support plate 5 moves along the sliding rods 19 through the arrangement of the sliding rods 19, so that the first support plate 5 and the upper die base 61 do not displace during the movement, and, the lower surface of the first supporting plate 5 is lapped with the upper surface of the movable die 6, the four corners of the lower surface of the movable die 6 are respectively provided with a first threaded hole 7, the movable die 6 comprises an upper die base 61, the upper surface of the upper die base 61 is lapped with the lower surface of the first supporting plate 5, and the four corners of the lower surface of the upper die holder 61 are all provided with first threaded holes 7, the lower surface of the upper die holder 61 is fixedly connected with the upper surface of the convex die 62, and the male die 62 corresponds to the position of the fixed die 10, the first screw hole 7 is internally threaded with the threaded rod 8, by arranging the threaded rod 8, the upper die base 61 and the first supporting plate 5 can be fixed together by the threaded rod 8, meanwhile, workers can conveniently detach the upper die base 61 from the first supporting plate 5 for maintenance, and the top end of the threaded rod 8 passes through the first threaded hole 7 and is in threaded connection with a second threaded hole 9 formed in the lower surface of the first supporting plate 5.
A fixed die 10 is arranged right below the movable die 6, the lower surface of the fixed die 10 is in lap joint with the upper surface of the cooling plate 12, a third threaded hole 11 is formed in the lower surface of the fixed die 10, the lower die holder 101 is conveniently detached from the cooling plate 12 through the arrangement of the third threaded hole 11, so that a worker can conveniently overhaul the lower die holder 101, the fixed die 10 comprises the lower die holder 101, the third threaded hole 11 is formed in the lower surface of the lower die holder 101, a female die 102 is fixedly connected to the upper surface of the lower die holder 101, the female die 102 corresponds to the male die 62 in position, a threaded column 13 is in threaded connection with the third threaded hole 11, the bottom end of the threaded column 13 is fixedly connected with the upper surface of the cooling plate 12, the cooling plate 12 is arranged to cool the lower die holder 101, the over-high temperature of the female die 102 is avoided, and the precision of a workpiece is improved, the cooling plate 12 is internally provided with a cooling groove 14, the lower surface of the inner wall of the cooling groove 14 is higher at the left and lower at the right, the cooling liquid in the cooling groove 14 can flow to the liquid outlet pipe 24 by arranging the lower surface of the inner wall of the cooling groove 14 at the high at the left and lower at the right, so that the cooling liquid in the cooling groove 14 can be conveniently emptied, the lower surface of the cooling plate 12 is fixedly connected with the upper surface of the second support plate 16 through four buffer devices 15, and the four buffer devices 15 are respectively positioned at the four corners of the lower surface of the cooling plate 12, each buffer device 15 comprises a telescopic rod 151, the outer surface of each telescopic rod 151 is sleeved with a spring 152, the springs 152 are compressed downwards when being subjected to overlarge impact force by arranging the springs 152, so that the material is prevented from being damaged under the overlarge impact force, the bottom ends of the telescopic rods 151 and the springs 152 are fixedly connected with the lower surface of the cooling plate 12, and the, the lower surface of the second support plate 16 is fixedly connected with the upper surface of the support plate 1 through four electric push rods 17, the four electric push rods 17 are respectively positioned at four corners of the lower surface of the second support plate 16, and by arranging the electric push rods 17, a worker can adjust the distance between the female die 102 and the male die 62 according to different stamping materials, so that the stamping effect is optimal.
The upper surface of the carrier plate 1 is provided with a liquid pumping device 20, a liquid outlet of the liquid pumping device 20 is communicated with one end of a liquid conveying pipe 21, the liquid pumping device 20 comprises a water pump 201, a lower surface of the water pump 201 is fixedly connected with the upper surface of the carrier plate 1, the water pump 201 is arranged to continuously convey cooling liquid into the cooling tank 14, so as to ensure the cooling effect of the cooling plate 12, a liquid pumping port of the water pump 201 is communicated with a right end of a liquid pumping pipe 202, a liquid outlet of the water pump 201 is communicated with one end of the liquid conveying pipe 21, the liquid conveying pipe 21 is a flexible hose, the other end of the liquid conveying pipe 21 is communicated with a left end of a liquid inlet pipe 23 through a first pipe sleeve 22 clamped on the left side surface of the left side plate 2, a right end of the liquid inlet pipe 23 is communicated with the left side surface of the cooling tank 14, a right side surface of the cooling tank 14 is communicated with a left, and recovery tube 25 is the flexible hose also, be the flexible hose through setting up transfer line 21 and recovery tube 25, make transfer line 21 and recovery tube 25 can be crooked flexible, thereby make transfer line 21 and recovery tube 25 can remove along with the removal of cooling plate 12, the other end of recovery tube 25 passes the second pipe box 26 of right side curb plate 2 left surface joint and is linked together with the upper surface of box 27, and the lower surface of box 27 and the upper surface overlap joint of support plate 1, through setting up box 27, make box 27 can retrieve the coolant liquid, make the coolant liquid can utilize once more, thereby improve the utilization ratio of coolant liquid, the waste of reducible coolant liquid.
The utility model discloses an operating procedure does:
s1, firstly, a worker puts a material into the female die 102, then the worker controls the electric push rod 17 to work through the second switch 30, the electric push rod 17 works to drive the second supporting plate 16 to move, the second supporting plate 16 moves to drive the cooling plate 12 and the fixed die 10 to move through the buffer device 15, and when the distance between the female die 102 and the male die 62 is adjusted to the optimal position, the worker controls the electric push rod 17 to stop working through the second switch 30;
s2, controlling the hydraulic cylinder 4 to work through the first switch 29 by a worker, driving the first support plate 5 to move by the work of the hydraulic cylinder 4, and driving the male die 62 to move by the movement of the first support plate 5, so that the male die 62 punches the material in the female die 102;
s3, controlling the water pump 201 to work through the third switch 31 by a worker, pumping the cooling liquid through the liquid pumping pipe 202 by the water pump 201, conveying the cooling liquid into the cooling tank 14 through the liquid conveying pipe 21 and the liquid inlet pipe 23 so that the cooling liquid can cool the cooling plate 12, and then flowing out of the cooling tank 14 through the liquid outlet pipe 24 and flowing into the box body 27 through the liquid outlet pipe 24 and the recovery pipe 25;
and S4, when the material is punched, the worker controls the hydraulic cylinder 4 to stop working through the first switch 29, then controls the water pump 201 to stop working, and finally takes out the punched material from the female die 102.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a stamping device is used in new material production with buffer function, includes support plate (1), its characterized in that: the left side surface and the right side surface of the upper surface of the carrier plate (1) are respectively fixedly connected with the lower surfaces of the two side plates (2), the upper surfaces of the two side plates (2) are respectively fixedly connected with the lower surface of the top plate (3), the lower surface of the top plate (3) is fixedly connected with the top end of the hydraulic cylinder (4), the bottom end of the hydraulic cylinder (4) is fixedly connected with the upper surface of the first support plate (5), four corners of the upper surface of the first support plate (5) are respectively connected with a sliding sleeve (18), the sliding sleeves (18) are slidably connected onto sliding rods (19), the bottom end of the sliding rods (19) is fixedly connected with the upper surface of the carrier plate (1), the lower surface of the first support plate (5) is lapped with the upper surface of the movable mold (6), the four corners of the lower surface of the movable mold (6) are respectively provided with first threaded holes (7), and threaded rods (8) are in threaded connection with, the top end of the threaded rod (8) penetrates through the first threaded hole (7) and is in threaded connection with a second threaded hole (9) formed in the lower surface of the first supporting plate (5);
a fixed die (10) is arranged right below the movable die (6), the lower surface of the fixed die (10) is in lap joint with the upper surface of a cooling plate (12), a third threaded hole (11) is formed in the lower surface of the fixed die (10), a threaded column (13) is in threaded connection with the third threaded hole (11), the bottom end of the threaded column (13) is fixedly connected with the upper surface of the cooling plate (12), a cooling groove (14) is formed in the cooling plate (12), the lower surface of the inner wall of the cooling groove (14) is high in left and low in right, the lower surface of the cooling plate (12) is fixedly connected with the upper surface of a second supporting plate (16) through four buffering devices (15), the four buffering devices (15) are respectively positioned at four corners of the lower surface of the cooling plate (12), and the lower surface of the second supporting plate (16) is fixedly connected with the upper surface of the carrier plate (1) through four electric push rods (17), the four electric push rods (17) are respectively positioned at the four corners of the lower surface of the second supporting plate (16);
the upper surface of the carrier plate (1) is provided with a liquid pumping device (20), a liquid outlet of the liquid pumping device (20) is communicated with one end of a liquid conveying pipe (21), the infusion tube (21) is a flexible hose, the other end of the infusion tube (21) passes through a first tube sleeve (22) clamped on the left side surface of the left side plate (2) to be communicated with the left end of the liquid inlet tube (23), and the right end of the liquid inlet pipe (23) is communicated with the left side surface of the cooling tank (14), the right side surface of the cooling tank (14) is communicated with the left end of the liquid outlet pipe (24), and the right end of the liquid outlet pipe (24) is communicated with one end of the recovery pipe (25), the other end of the recovery pipe (25) passes through a second pipe sleeve (26) clamped on the left side surface of the right side plate (2) and is communicated with the upper surface of the box body (27), and the lower surface of the box body (27) is overlapped with the upper surface of the carrier plate (1).
2. The new material production press apparatus having a buffering function according to claim 1, characterized in that: the movable die (6) comprises an upper die base (61), the upper surface of the upper die base (61) is in lap joint with the lower surface of a first supporting plate (5), first threaded holes (7) are formed in four corners of the lower surface of the upper die base (61), the lower surface of the upper die base (61) is fixedly connected with the upper surface of a male die (62), and the male die (62) corresponds to the position of a fixed die (10).
3. The new material production press apparatus having a buffering function according to claim 1, characterized in that: the fixing die (10) comprises a lower die holder (101), a third threaded hole (11) is formed in the lower surface of the lower die holder (101), a female die (102) is fixedly connected to the upper surface of the lower die holder (101), and the female die (102) corresponds to the male die (62).
4. The new material production press apparatus having a buffering function according to claim 1, characterized in that: buffer (15) include telescopic link (151) to spring (152) have been cup jointed to the surface of telescopic link (151), the bottom of telescopic link (151) and spring (152) all is connected with the lower fixed surface of cooling plate (12), and the bottom of telescopic link (151) and spring (152) all is connected with the upper fixed surface of second backup pad (16).
5. The new material production press apparatus having a buffering function according to claim 1, characterized in that: the liquid pumping device (20) comprises a water pump (201), the lower surface of the water pump (201) is fixedly connected with the upper surface of the carrier plate (1), a liquid pumping port of the water pump (201) is communicated with the right end of the liquid pumping pipe (202), and a liquid outlet of the water pump (201) is communicated with one end of the liquid conveying pipe (21).
6. The new material production press apparatus having a buffering function according to claim 1, characterized in that: the left side surface of the side plate (2) is provided with a power supply (28), and the left side surface of the power supply (28) is sequentially provided with a first switch (29), a second switch (30) and a third switch (31) from top to bottom.
7. The new material production press apparatus having a buffering function according to claim 6, wherein: the output end of the power supply (28) is electrically connected with the input ends of the first switch (29), the second switch (30) and the third switch (31) through conducting wires respectively, the output end of the first switch (29) is electrically connected with the input end of the hydraulic cylinder (4) through conducting wires, the output end of the second switch (30) is electrically connected with the input end of the electric push rod (17) through conducting wires, and the output end of the third switch (31) is electrically connected with the input end of the water pump (201) through conducting wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920493400.9U CN210062153U (en) | 2019-04-12 | 2019-04-12 | Stamping device is used in new material production with buffer function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920493400.9U CN210062153U (en) | 2019-04-12 | 2019-04-12 | Stamping device is used in new material production with buffer function |
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| Publication Number | Publication Date |
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| CN210062153U true CN210062153U (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920493400.9U Expired - Fee Related CN210062153U (en) | 2019-04-12 | 2019-04-12 | Stamping device is used in new material production with buffer function |
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| Country | Link |
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| CN (1) | CN210062153U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112497820A (en) * | 2020-10-31 | 2021-03-16 | 泰州海特碳纤维复合材料有限公司 | Be used for new material production and processing to use compression fittings |
-
2019
- 2019-04-12 CN CN201920493400.9U patent/CN210062153U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112497820A (en) * | 2020-10-31 | 2021-03-16 | 泰州海特碳纤维复合材料有限公司 | Be used for new material production and processing to use compression fittings |
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