CN209985089U - Organic waste gas treatment device for ES composite short fiber production - Google Patents
Organic waste gas treatment device for ES composite short fiber production Download PDFInfo
- Publication number
- CN209985089U CN209985089U CN201920668153.1U CN201920668153U CN209985089U CN 209985089 U CN209985089 U CN 209985089U CN 201920668153 U CN201920668153 U CN 201920668153U CN 209985089 U CN209985089 U CN 209985089U
- Authority
- CN
- China
- Prior art keywords
- tank
- waste gas
- rod
- treatment device
- gas treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 239000007789 gas Substances 0.000 title claims abstract description 20
- 239000010815 organic waste Substances 0.000 title claims abstract description 17
- 238000007380 fibre production Methods 0.000 title claims abstract description 11
- 241000220317 Rosa Species 0.000 claims abstract description 11
- 239000007787 solid Substances 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 5
- 239000013049 sediment Substances 0.000 claims description 4
- 238000005406 washing Methods 0.000 abstract description 17
- 239000002912 waste gas Substances 0.000 abstract description 11
- 239000012535 impurity Substances 0.000 abstract description 8
- 239000008187 granular material Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010795 gaseous waste Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model relates to a waste gas treatment device technical field, and disclose ES composite short fiber production uses organic waste gas treatment device, including base and the fixed washing tank that sets up at the base upper surface, light groove and solid filter-tank, the upper surface of base is located the fixed rose box that is equipped with in left side of washing tank, the lateral wall bottom and the top of rose box communicate respectively has intake pipe and outlet duct, the outlet duct is kept away from the one end of rose box and the lateral wall intercommunication of washing tank, the fixed filter screen that is equipped with of inside upside level of rose box, the below that the inside of rose box is located the filter screen transversely is equipped with reciprocal lead screw, the both sides inner wall of rose box all inlays and is equipped with antifriction bearing, the both ends of reciprocal lead screw are all rotated through the both sides inner. The utility model discloses convenient operation can filter the waste gas that accesss to in the washing tank, avoids the inside of the impurity entering washing tank of great granule to plug up the drain pipe.
Description
Technical Field
The utility model relates to a waste gas treatment device technical field especially relates to organic waste gas treatment device is used in production of ES composite staple fiber.
Background
The manufacturing process of the ES composite fiber comprises the steps of pre-oxidation, carbonization, surface treatment and the like, and each step has a crucial influence on the quality of the ES composite fiber. The ES composite fiber production industry is always puzzled by the problems of high energy consumption and difficult treatment of production waste gas, so that the production cost of the ES composite fiber is always high.
The patent number is CN208003703U, and discloses a waste gas treatment device for carbon fiber production, which comprises a cleaning tank, an ignition tank, a solid filter tank, a vent pipe, a flame jet, a hydrogen pipe, an oxygen pipe, a waste water outflow pipe, a waste gas inlet pipe, a waste water pipe valve, a one-way air inlet valve, a water pipe or an electrolytic tank, wherein the cleaning tank, the ignition tank and the solid filter tank are all connected through the vent pipe; the electrolytic tank is connected with the solid filter tank through a water pipe. Although the gaseous waste gas that the production of ES conjugate fiber produced can be handled to above-mentioned patent, waste gas does not have corresponding exhaust gas filtering device before letting in the washing tank, has increased the pollution degree of washing water in the washing tank, and the drain pipe of washing tank can be stopped up even to the impurity of great granule moreover.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving among the prior art organic waste gas of ES composite fiber's production does not have corresponding exhaust gas filtering device before letting in the washing tank, has increased the pollution degree of washing water in the washing tank, and the problem of the drain pipe of washing tank can be plugged up even to the impurity of great granule moreover, and the ES composite short fiber production that provides uses organic waste gas treatment device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the organic waste gas treatment device for the production of the ES composite short fibers comprises a base, a cleaning tank, a lighting tank and a solid filtering tank, wherein the cleaning tank, the lighting tank and the solid filtering tank are fixedly arranged on the upper surface of the base, the upper surface of the base is positioned on the left side of the cleaning tank, the bottom and the top of the side wall of the filtering tank are respectively communicated with an air inlet pipe and an air outlet pipe, one end, far away from the filtering tank, of the air outlet pipe is communicated with the side wall of the cleaning tank, a filter screen is horizontally and fixedly arranged on the upper side inside of the filtering tank, a reciprocating lead screw is transversely arranged below the filter screen inside the filtering tank, rolling bearings are embedded in the inner walls on the two sides of the filtering tank, the two ends of the reciprocating lead screw are rotatably connected with the inner walls on the two sides of the filtering tank through the rolling, one end of the reciprocating screw rod penetrates through the joint of the filter box and the motor box and is fixedly connected with the output end of the motor, the rod wall of the reciprocating screw rod is connected with a reciprocating slide block in a sliding manner, a connecting rod is fixedly arranged on the upper side of the reciprocating slide block, a longitudinally arranged movable plate is fixedly arranged at the upper end of the connecting rod, a cleaning brush is fixedly arranged on the upper surface of the movable plate and is in contact with the lower surface of the filter screen, a slide rod is transversely and fixedly arranged in the filter box below the reciprocating screw rod, a slide block is fixedly arranged on the lower side of the reciprocating slide block, and the side wall of the slide block is in sliding connection with the rod wall of the slide rod through;
the filter box comprises a filter box body, and is characterized in that a groove is formed in the bottom of the side wall of one side of the filter box body, a slag taking port is formed in the bottom of the groove, a fixing plate is arranged inside the groove, a sealing plate matched with the slag taking port is fixedly arranged on the side wall of the fixing plate, cavities are formed in the upper side and the lower side of the inside of the fixing plate, and clamping mechanisms are arranged inside the cavities.
Preferably, the clamping device comprises a moving block arranged in the cavity in a sliding mode, a spring is fixedly arranged on the lower side of the moving block, the lower end of the spring is fixedly connected with the bottom of the cavity, a clamping rod is fixedly arranged on the upper side of the moving block, the upper end of the clamping rod penetrates through the top of the cavity and extends into a groove, clamping grooves matched with the clamping rod are formed in the upper side and the lower side of the groove, a strip-shaped hole is formed in the right side wall of the cavity, a pressing rod is fixedly arranged on one side, close to the strip-shaped hole, of the moving block, and one end, far away from the moving block, of the pressing rod penetrates through.
Preferably, the sealing plate is made of rubber.
Preferably, the rolling bearing close to one side of the motor is a sealed bearing.
Preferably, the motor is a speed reducing motor and is of a model WPL360L 1-5-P2-S2.
Compared with the prior art, the utility model provides an organic waste gas treatment device is used in production of ES composite staple fiber possesses following beneficial effect:
1. this organic waste gas processing apparatus is used in production of ES composite short fiber, through setting up the filter screen in the rose box inside, can filter the waste gas that accesss to in the washing tank, avoid the inside of the impurity entering washing tank of great granule, through setting up the motor at the motor incasement portion, motor work can drive reciprocal lead screw and rotate, reciprocal lead screw can drive reciprocating slide block left and right sides reciprocating motion, thereby can drive the lower surface of clearance brush to the filter screen and clear up repeatedly, clear up the impurity on the filter screen, the result of use of filter screen has been improved.
2. This organic waste gas processing apparatus is used in production of ES composite staple fiber, through setting up two press bars on the fixed plate, press two press bars simultaneously, make two press bars be close to the removal relatively, thereby can make two kellies break away from two draw-in grooves respectively, can take out fixed plate and closing plate from the inside of recess with get the sediment mouth, the staff of being convenient for clears up the waste residue of rose box bottom, through setting up spring and the movable block in the cavity is inside, the spring can apply an ascending power for the movable block, thereby can make kellies and draw-in groove closely cooperate and fix fixed plate and recess.
The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses convenient operation can filter the waste gas that accesss to in the washing tank, avoids the inside that the impurity of great granule got into the washing tank to plug up the drain pipe.
Drawings
FIG. 1 is a schematic structural view of an organic waste gas treatment device for producing ES composite short fibers according to the present invention;
FIG. 2 is a schematic view of the interior of the filtration tank of FIG. 1;
fig. 3 is an enlarged view of a portion a of fig. 2.
In the figure: 1. a base; 2. a cleaning tank; 3. igniting the groove; 4. a solid filter tank; 5. a filter box; 6. a filter screen; 7. a reciprocating screw rod; 8. a motor; 9. a reciprocating slide block; 10. a connecting rod; 11. moving the plate; 12. a slide bar; 13. a slider; 14. a fixing plate; 15. a sealing plate; 16. a moving block; 17. a spring; 18. a clamping rod; 19. the lever is pressed.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-3, the organic waste gas treatment device for ES composite short fiber production includes a base 1, and a cleaning tank 2, an ignition tank 3 and a solid filter tank 4 fixedly disposed on the upper surface of the base 1, wherein the cleaning tank 2, the ignition tank 3 and the solid filter tank 4 can treat waste gas in a comparison document, and therefore, the details are not repeated herein. The upper surface of the base 1 is positioned at the left side of the cleaning tank 2 and is fixedly provided with a filter box 5, the bottom and the top of the side wall of the filter box 5 are respectively communicated with an air inlet pipe and an air outlet pipe, one end of the air outlet pipe, which is far away from the filter box 5, is communicated with the side wall of the cleaning tank 2, the upper side inside the filter box 5 is horizontally and fixedly provided with a filter screen 6, a reciprocating screw 7 is transversely arranged inside the filter box 5, which is positioned below the filter screen 6, rolling bearings are embedded in the inner walls at two sides of the filter box 5, two ends of the reciprocating screw 7 are rotatably connected with the inner walls at two sides of the filter box 5 through the rolling bearings, a motor box is fixedly arranged at the position corresponding part of the outer side wall of the filter box 5 and the reciprocating screw 7, a motor 8 is fixedly arranged inside the motor box, one end of the reciprocating screw 7 penetrates through, a connecting rod 10 is fixedly arranged on the upper side of the reciprocating slide block 9, a moving plate 11 which is longitudinally arranged is fixedly arranged at the upper end of the connecting rod 10, a cleaning brush is fixedly arranged on the upper surface of the moving plate 11 and is in contact with the lower surface of the filter screen 6, a slide rod 12 is transversely and fixedly arranged in the filter box 5 below the reciprocating screw rod 7, a slide block 13 is fixedly arranged on the lower side of the reciprocating slide block 9, and the side wall of the slide block 13 is in sliding connection with the rod wall of the slide rod 12 through a slide hole;
the bottom of the side wall of one side of the filter box 5 is provided with a groove, a slag taking port is formed in the groove bottom of the groove, a fixing plate 14 is arranged inside the groove, a sealing plate 15 matched with the slag taking port is fixedly arranged on the side wall of the fixing plate 14, cavities are formed in the upper side and the lower side of the inside of the fixing plate 14, and clamping mechanisms are arranged inside the two cavities.
The clamping mechanism comprises a moving block 16 which is arranged in the cavity in a sliding manner, a spring 17 is fixedly arranged on the lower side of the moving block 16, the lower end of the spring 17 is fixedly connected with the bottom of the cavity, a clamping rod 18 is fixedly arranged on the upper side of the moving block 16, the upper end of the clamping rod 18 penetrates through the top of the cavity and extends into a groove, clamping grooves matched with the clamping rod 18 are formed in the upper side and the lower side of the groove, a strip-shaped hole is formed in the right side wall of the cavity, a pressing rod 19 is fixedly arranged on one side, close to the strip-shaped hole, of the moving block 16, one end, far away from the moving block 16, of the pressing rod 19 penetrates through the strip-shaped hole and extends, thereby can make two kellies 18 break away from two draw-in grooves respectively, can take out fixed plate 14 and closing plate 15 from the recess with the inside of getting the sediment mouth, the staff of being convenient for clears up the waste residue of rose box 5 bottom.
The sealing plate 15 is made of rubber and can seal the slag taking port.
The rolling bearing close to one side of the motor 8 adopts a sealing bearing, so that the sealing performance between the reciprocating screw rod 7 and the filter box 5 can be improved.
The motor 8 is a speed reducing motor and is of a model of WPL360L1-5-P2-S2, and the motor 8 is electrically connected with an external power supply through a control switch.
In the utility model, when in use, the waste gas led to the cleaning tank 2 can be filtered through the filter screen 6 arranged inside the filter box 5, the impurity with larger particles is prevented from entering the cleaning tank 2, the motor 8 is turned on to drive the reciprocating screw rod 7 to rotate, the reciprocating screw rod 7 can drive the reciprocating slide block 9 to reciprocate left and right, thereby the cleaning brush can be driven to repeatedly clean the lower surface of the filter screen 6, the impurity on the filter screen 6 is cleaned, the use effect of the filter screen 6 is improved, the worker presses the two pressing rods 19 simultaneously to enable the two pressing rods 19 to move relatively close to each other, thereby the two clamping rods 18 can be respectively separated from the two clamping grooves, the fixed plate 14 and the sealing plate 15 can be taken out from the grooves and the slag taking port, the worker can clean the waste slag at the bottom of the filter box 5 conveniently, through the spring 17 and the moving block 16 arranged inside the cavity, the spring 17 can apply an upward force to the moving block 16, so that the clamping rod 18 can be tightly matched with the clamping groove and the fixing plate 14 can be fixed with the groove.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
- The organic waste gas treatment device for the production of the ES composite short fibers comprises a base (1), a cleaning tank (2), a lighting tank (3) and a solid filtering tank (4) which are fixedly arranged on the upper surface of the base (1), and is characterized in that the upper surface of the base (1) is fixedly provided with the filtering tank (5) on the left side of the cleaning tank (2), the bottom and the top of the side wall of the filtering tank (5) are respectively communicated with an air inlet pipe and an air outlet pipe, one end of the air outlet pipe, which is far away from the filtering tank (5), is communicated with the side wall of the cleaning tank (2), a filtering net (6) is horizontally and fixedly arranged on the upper side of the inside of the filtering tank (5), a reciprocating screw rod (7) is transversely arranged below the filtering net (6) in the inside of the filtering tank (5), rolling bearings are embedded in the inner walls on the two sides of the filtering tank (5), and the two ends of the reciprocating screw rod (7), the outer side wall of the filter box (5) is fixedly provided with a motor box corresponding to the position of the reciprocating lead screw (7), the motor box is fixedly provided with a motor (8) inside, one end of the reciprocating lead screw (7) penetrates through the joint of the filter box (5) and the motor box and is fixedly connected with the output end of the motor (8), the rod wall of the reciprocating lead screw (7) is connected with a reciprocating slide block (9) in a sliding manner, a connecting rod (10) is fixedly arranged on the upper side of the reciprocating slide block (9), a vertically arranged movable plate (11) is fixedly arranged at the upper end of the connecting rod (10), a cleaning brush is fixedly arranged on the upper surface of the movable plate (11) and is in contact with the lower surface of the filter screen (6), a slide rod (12) is transversely fixedly arranged below the reciprocating lead screw (7) inside the filter box (5), and a slide block (13) is fixedly arranged on the lower side of the reciprocating slide block (, the side wall of the sliding block (13) is in sliding connection with the rod wall of the sliding rod (12) through a sliding hole;the utility model discloses a slag tap, including rose box (5), filter tank (14), the lateral wall bottom of rose box (5) one side is seted up flutedly, the tank bottom department of recess has been seted up and has been got the sediment mouth, the inside of recess is equipped with fixed plate (14), the lateral wall of fixed plate (14) is fixed to be equipped with and gets sediment mouthful matched with closing plate (15), both sides all are equipped with the cavity about the inside of fixed plate (14), two the inside of cavity all is equipped with chucking mechanism.
- 2. The organic waste gas treatment device for ES composite short fiber production according to claim 1, wherein the clamping mechanism comprises a moving block (16) slidably disposed in the cavity, a spring (17) is fixedly disposed on the lower side of the moving block (16), the lower end of the spring (17) is fixedly connected with the bottom of the cavity, a clamping rod (18) is fixedly disposed on the upper side of the moving block (16), the upper end of the clamping rod (18) penetrates through the top of the cavity and extends into the groove, clamping grooves matched with the clamping rod (18) are formed in the upper side and the lower side of the groove, a strip-shaped hole is formed in the right side wall of the cavity, a pressing rod (19) is fixedly disposed on one side of the moving block (16) close to the strip-shaped hole, and one end of the pressing rod (19) far away from the moving block (16) penetrates through the strip-shaped hole and.
- 3. The organic waste gas treatment device for ES composite staple fiber production according to claim 2, wherein the sealing plate (15) is made of rubber.
- 4. The organic waste gas treatment device for ES composite short fiber production according to claim 1, wherein the rolling bearing on the side close to the motor (8) is a sealed bearing.
- 5. The organic waste gas treatment device for ES composite staple fiber production according to claim 1, wherein the motor (8) is a speed reduction motor and is WPL360L 1-5-P2-S2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920668153.1U CN209985089U (en) | 2019-05-10 | 2019-05-10 | Organic waste gas treatment device for ES composite short fiber production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920668153.1U CN209985089U (en) | 2019-05-10 | 2019-05-10 | Organic waste gas treatment device for ES composite short fiber production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209985089U true CN209985089U (en) | 2020-01-24 |
Family
ID=69293838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920668153.1U Active CN209985089U (en) | 2019-05-10 | 2019-05-10 | Organic waste gas treatment device for ES composite short fiber production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209985089U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864005A (en) * | 2021-08-16 | 2021-12-31 | 华能国际电力股份有限公司大连电厂 | Method for operating steam turbine of water supply pump |
-
2019
- 2019-05-10 CN CN201920668153.1U patent/CN209985089U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864005A (en) * | 2021-08-16 | 2021-12-31 | 华能国际电力股份有限公司大连电厂 | Method for operating steam turbine of water supply pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210993600U (en) | Activated carbon adsorption box for waste gas treatment equipment | |
| CN209985089U (en) | Organic waste gas treatment device for ES composite short fiber production | |
| CN210845785U (en) | Phthalic anhydride device tail gas aftertreatment device | |
| CN212119344U (en) | Conveying pipeline for factory waste gas treatment | |
| CN217965450U (en) | Multi freedom's welding set | |
| CN217988718U (en) | Oxygen generator | |
| CN214597893U (en) | Activated carbon purification device | |
| CN208302792U (en) | A kind of Regenevating Waste Activated Carbon disposal facility | |
| CN215694343U (en) | Solid waste treatment equipment for environmental protection | |
| CN214270275U (en) | Extraction element of inorganic salt in high salt waste water | |
| CN215627122U (en) | Printing and dyeing wastewater membrane method purification device | |
| CN212039199U (en) | Sewage filtering device | |
| CN210485929U (en) | Air purifier for large-area indoor use | |
| CN214606848U (en) | Surface fine processing device for patterned roller | |
| CN216024125U (en) | A photocatalysis equipment for exhaust-gas treatment | |
| CN112569665A (en) | Multistage concentrated solidification treatment device of industrial waste water | |
| CN212799952U (en) | Defluorination wastewater treatment equipment | |
| CN217909493U (en) | Air guide supercharging device | |
| CN218741143U (en) | Solid waste sludge treatment organic waste gas treatment device | |
| CN217913176U (en) | Cutting machine tool for machining automobile parts | |
| CN215742802U (en) | Industrial waste gas handles UV photodissociation exhaust gas purifier with multistage circulation processing | |
| CN217887136U (en) | Pressurization treatment device for filtering sewage impurities | |
| CN213529865U (en) | Solar panel production device | |
| CN214053054U (en) | Plastic processing waste gas pump drainage device | |
| CN211189374U (en) | Tail gas purification environmental protection liquid filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.6, Fengsheng Road, Jinjiang Economic Development Zone (wuliyuan), Quanzhou City, Fujian Province, 362200 Patentee after: Fujian Fudi New Materials Co.,Ltd. Country or region after: China Address before: No.6, Fengsheng Road, Jinjiang Economic Development Zone (wuliyuan), Quanzhou City, Fujian Province, 362200 Patentee before: FUJIAN FUDI CHEMICAL FIBER TECHNOLOGY Co.,Ltd. Country or region before: China |