CN105172102A - Multi-screw and multi-screw disc combined mixing extrusion molding device - Google Patents
Multi-screw and multi-screw disc combined mixing extrusion molding device Download PDFInfo
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- CN105172102A CN105172102A CN201510602242.2A CN201510602242A CN105172102A CN 105172102 A CN105172102 A CN 105172102A CN 201510602242 A CN201510602242 A CN 201510602242A CN 105172102 A CN105172102 A CN 105172102A
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- rotating disk
- screw channel
- channel group
- group
- screw
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/445—Coaxially arranged screws, i.e. one within the other
Abstract
The invention relates to a multi-screw and multi-screw disc combined mixing extrusion molding device. The device comprises an extrusion head, first to fourth radial bearing packs, an electric heating ring, a special-shaped cylinder, a hopper, a base, a first driving mechanism, a second driving mechanism, a first motor, a second motor, a first transitional gear, a second transitional gear, first to fourth gears, and first to fourth thrust bearings. The multi-screw and multi-screw disc combined mixing extrusion molding device is characterized by further comprising a center screw and first to third rotary discs. A center screw channel unit is arranged at the left end of the center screw. A first end face screw channel unit, a second end face screw channel unit and a third end face screw channel unit are arranged on the left end faces of the first rotary disc, the second rotary disc and the third rotary disc respectively. An outer circumference screw channel unit is arranged on the outer circumference of the left end of the third rotary disc. The center screw channel unit, the first to third end face screw channel units and the outer circumference screw channel unit are sleeved with the special-shaped cylinder and are communicated in sequence, so that a material smashing, grinding, extruding, mixing and conveying channel is formed. The multi-screw and multi-screw disc combined mixing extrusion molding device has the beneficial effects of having the high smashing, plasticizing, mixing and grinding capacities, remarkably improving the material smashing, plasticizing, mixing and extruding quality, and the like.
Description
Technical field
The present invention relates to a kind of multiscrew and the mixing extrusion moulding apparatus of multiple spiral shell dish combined type, it is for the processing to all kinds of macromolecular material, inorganic material and filler thereof, mill pressure, mixing, the equipment pulverizing and extrude, belongs to the processing of all kinds of inorganic and organic material, mixing, mill pressure, pulverizes and extrusion molding equipment technology field.
Background technology
At a large amount of inorganic material and some organic materials as in rubber, field of plastics processing, pulverize, processing, stir, mixing, mill pressure, reactive extrursion and extrusion molding be very important link.Pressure was pulverized, and sheared and ground to common multiple screw extruder function to material is limited, especially when material carry out brute force grind time, this shortcoming is given prominence to especially.And abrasive disk type pulverising mill pressure process equipment, although its mill pressure and grindability are relatively by force, its conveying plasticating capacity is not enough,
For overcoming the deficiency of common single-screw machine, improve mixing plasticizing capacity, partial monopoly adopts multiscrew mode, as Chinese patent " the differential conical three-screw rod extruder of screw rod rounded projections arranged " and " the differential conical three-screw rod extruder of screw rod rods arranged in horizontal line ", its three conical screws respectively in rods arranged in horizontal line and rounded projections arranged, owing to adopting many screw rods, separately in addition special screw-rod structure and arrangement mode, achieve differential to rotate, enhance mixing ability.
For overcoming the deficiency of screw machine, part machine is also had to adopt abrasive disk type structure to reach pulverizing and extrusion molding object.Publication number is the Chinese patent of CN03102852, it discloses " a kind of Ginding disc type high-speed extruder ", adopt screw pump version in fixing transportation section, have employed mill version at material extension melt zone, adopt volute pump structure at melt conveying zone.
China Patent No. is in " Mechanico-chemical reactor " of ZL95242817.2, have employed more than one pair of fixing mill and rotary grinding disk, material can be made man-hour to be subject to powerful extruding and shear action adding.
Also researcher is had to be combined with screw rod by mill, if United States Patent (USP) is patent discloses " a kind of disk extruding machine " of US3262154, which employs a pair large diameter mill pulverize material and extrude, carry out melt Conveying at axle center place with a screw rod again, part improves pulverizing and transport capability.
Above to illustrate, all have employed screw or mill version, or the two is combinationally used, although configurations, does not all overcome that traditional mill extrusion apparatus Flow of Goods and Materials resistance is large, plasticizing effect is undesirable, power consumption is large and the intrinsic problem of classic screw extruder.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art and a kind of screw rod and the mixing extrusion moulding apparatus of multiple spiral shell dish combined type are provided, its grindability, plasticizing capacity, mixing ability and mill pressure energy power are strong, can significantly improve the pulverizing of material, plasticizing, mixing and extrude quality and output.
In order to achieve the above object, the present invention realizes like this, it is that one comprises the first heat resistant joint ring, second heat resistant joint ring, extruder head, first radial bearing group, second radial bearing group, electric heating coil, abnormity machine barrel, 3rd radial bearing group, hopper, 4th radial bearing group, stand, first transmission mechanism, first motor, First Transition gear, first gear, first thrust bearing, second gear, second thrust bearing, second transition gear, second motor, second transmission mechanism, 3rd thrust bearing, 3rd gear, 4th thrust bearing and the 4th gear, characterized by further comprising center bolt, the first rotating disk, the second rotating disk and the 3rd rotating disk, wherein
Described center bolt is installed by the projecting shaft of self right-hand member, the first radial bearing group and the second thrust bearing and stand and is located, the projecting shaft of center bolt self right-hand member and the first radial bearing group are positioned at the centre bore of the first rotating disk, be provided with center screw channel group at the left end of center bolt, described center screw channel group is positioned at outside the centre bore of the first rotating disk; Described second heat resistant joint ring is sleeved on center bolt and the left end of center bolt and the first rotating disk is sealed and matched;
Described first rotating disk is installed by the second radial bearing group and the first thrust bearing and stand and is located, and the first rotating disk and the second radial bearing group are positioned at the centre bore of the second rotating disk, and the left side of the first rotating disk is provided with the first end face screw channel group;
Described second rotating disk is installed by the 3rd radial bearing group and the 3rd thrust bearing and stand and is located, and the second rotating disk and the 3rd radial bearing group are positioned at the centre bore of the 3rd rotating disk, and the left side of the second rotating disk is provided with the second end face screw channel group;
Described 3rd rotating disk is installed by the 4th radial bearing group and the 4th thrust bearing and stand and is located, the left side of the 3rd rotating disk is provided with the 3rd end face screw channel group, 3rd rotating disk left end excircle is provided with excircle screw channel group, and described excircle screw channel group and the 3rd end face screw channel set associative lead to;
Described special-shaped machine barrel is sleeved in center screw channel group, the first end face screw channel group, the second end face screw channel group, the 3rd end face screw channel group and excircle screw channel group, make center screw channel group, the first end face screw channel group, the second end face screw channel group, the 3rd end face screw channel group and excircle screw channel group UNICOM successively, special-shaped machine barrel is coaxial with center bolt, the first rotating disk, the second rotating disk and the 3rd rotating disk;
The right-hand member cylindrical that described hopper is arranged on special-shaped machine barrel is communicated with excircle screw channel group; Described extruder head is arranged on the left end of special-shaped machine barrel, and the left end of described center screw channel group is communicated with the delivery outlet of extruder head, thus the pulverizing of formation material, grinding, extruding, mixing and transfer passages;
Described second driven by motor second transmission mechanism rotates, and described second transmission mechanism is rotated by the second transition gear and the second gear driven center bolt, and the second transmission mechanism is by the first gear driven first turntable rotation;
Described first driven by motor first transmission mechanism rotates, and described first transmission mechanism is by First Transition gear and the 3rd gear driven second turntable rotation, and the first transmission mechanism is by the 4th gear driven the 3rd turntable rotation.
The left side of described first rotating disk, the second rotating disk and the 3rd rotating disk can be designed to the plane with axes normal, also can be designed to that there is certain taper, if the left side of these three rotating disks is designed to have certain taper, then the right side of the special-shaped machine barrel matched with them also will be designed to have certain taper.
The hand of spiral in described first end face screw channel group, the second end face screw channel group and the 3rd end face screw channel group can be also can be counterclockwise clockwise.
compared with prior art, tool has the following advantages in the present invention:
1, adopt wheeled circumference screw channel structure, disc type end face screw channel structure combines with common screw, give full play to the advantage of different structure parts, both there is the pulverizing of wheeled circumference screw channel and disc machine, grinding, mixing advantage, the advantage that the screw rod transmission ability that is arranged on axle center is strong can have been played again;
2, in multiple turntable structure, material continues to flow the end face screw channel group on circumference screw channel group, three rotating disks and the center screw channel group on center bolt, make material when being subject to shearing, mill pressure, can in the material channel of constantly conversion step by step mixed, broken, shear, merge and plastify, enhance Grinding Quality and efficiency, too increase the mixing of storeroom, mass-and heat-transfer, improve quality of item.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A section amplification figure of Fig. 1;
Fig. 3 is center bolt structural representation of the present invention;
Fig. 4 is the first turntable structure schematic diagram of the present invention;
Fig. 5 is the first rotating disk schematic perspective view of the present invention;
Fig. 6 is the second turntable structure schematic diagram of the present invention;
Fig. 7 is the second rotating disk schematic perspective view of the present invention;
Fig. 8 is three turntable structure schematic diagrames of the present invention;
Fig. 9 is the 3rd rotating disk schematic perspective view of the present invention;
Figure 10 is the structural representation of special-shaped machine barrel of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.It should be noted that at this, the explanation for these embodiments understands the present invention for helping, but does not form limitation of the invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can be combined with each other.
In the present description, orientation or the position relationship of the instruction such as term " left side " and " right side " are based on orientation shown in the drawings or position relationship, be only the present invention for convenience of description instead of require that the present invention with specific azimuth configuration and operation, therefore must can not be interpreted as limitation of the present invention.
In describing the invention, term " first " to " the 4th " only for describing object, and can not be interpreted as instruction or hint relative importance.
As shown in Fig. 1 to 10, it is a kind of screw rod and the mixing extrusion moulding apparatus of multiple spiral shell dish combined type, comprise the first heat resistant joint ring 1, second heat resistant joint ring 2, extruder head 3, center bolt 4, first radial bearing group 5, second radial bearing group 6, electric heating coil 7, abnormity machine barrel 8, 3rd radial bearing group 9, hopper 10, 4th radial bearing group 11, stand 12, first transmission mechanism 13, first motor 14, First Transition gear 15, first gear 16, first thrust bearing 17, second gear 18, second thrust bearing 19, second transition gear 20, second motor 21, second transmission mechanism 22, 3rd thrust bearing 23, 3rd gear 24, 4th thrust bearing 25, 4th gear 26, first rotating disk 27, second rotating disk 28 and the 3rd rotating disk 30, wherein
Described center bolt 4 to be installed with stand 12 by projecting shaft 402, the first radial bearing group 5 of self right-hand member and the second thrust bearing 19 and is located, the projecting shaft 402 of self right-hand member of center bolt 4 and the first radial bearing group 5 are positioned at the centre bore of the first rotating disk 27, be provided with center screw channel group 401 at the left end of center bolt 4, described center screw channel group 401 is positioned at outside the centre bore of the first rotating disk 27;
Described first rotating disk 27 to be installed with stand 12 by the second radial bearing group 6 and the first thrust bearing 17 and is located, first rotating disk 27 and the second radial bearing group 6 are positioned at the centre bore of the second rotating disk 28, and the left side of the first rotating disk 27 is provided with the first end face screw channel group 271; The left end that described first heat resistant joint ring 1 is sleeved on the first rotating disk 27 makes the left end of the first rotating disk 27 and the second rotating disk 28 be sealed and matched;
Described second rotating disk 28 to be installed with stand 12 by the 3rd radial bearing group 9 and the 3rd thrust bearing 23 and is located, second rotating disk 28 and the 3rd radial bearing group 9 are positioned at the centre bore of the 3rd rotating disk 30, and the left side of the second rotating disk 28 is provided with the second end face screw channel group 281;
Described 3rd rotating disk 30 to be installed with stand 12 by the 4th radial bearing group 11 and the 4th thrust bearing 25 and is located, the left side of the 3rd rotating disk 30 is provided with the 3rd end face screw channel group 301,3rd rotating disk 30 left end excircle is provided with excircle screw channel group 302, and described excircle screw channel group 302 and the 3rd end face screw channel group 301 are connected;
Described special-shaped machine barrel 8 is sleeved in center screw channel group 401, first end face screw channel group 271, second end face screw channel group the 281, the 3rd end face screw channel group 301 and excircle screw channel group 302, make center screw channel group 401, first end face screw channel group 271, second end face screw channel group the 281, the 3rd end face screw channel group 301 and excircle screw channel group 302 UNICOM successively, special-shaped machine barrel 8 and center bolt 4, first rotating disk 27, second rotating disk 28 and the 3rd rotating disk 30 coaxial; Described electric heating coil 7 is sleeved on outside special-shaped machine barrel 8, and electric heating coil 7 heats special-shaped machine barrel 8;
The right-hand member cylindrical that described hopper 10 is arranged on special-shaped machine barrel 8 is communicated with excircle screw channel group 302; Described extruder head 3 is arranged on the left end of special-shaped machine barrel 8, and the left end of described center screw channel group 401 is communicated with the delivery outlet of extruder head 3, thus the pulverizing of formation material, grinding, extruding, mixing and transfer passages;
Described second motor 21 drives the second transmission mechanism 22 to rotate, and described second transmission mechanism 22 drives center bolt 4 to rotate by the second transition gear 20 and the second gear 18, and the second transmission mechanism 22 drives the first rotating disk 27 to rotate by the first gear 16;
Described first motor 14 drives the first transmission mechanism 13 to rotate, and described first transmission mechanism 13 drives the second rotating disk 28 to rotate by First Transition gear 15 and the 3rd gear 24, and the first transmission mechanism 13 drives the 3rd rotating disk 30 to rotate by the 4th gear 26.
During work, material to continue to flow the end face screw channel group through circumference screw channel group, three rotating disks and the center screw channel group on center bolt from hopper 10, make material when being subject to shearing, mill pressure, can in the material channel of constantly conversion step by step mixed, broken, shear, merge and plastify, enhance Grinding Quality and efficiency, too increase the mixing of storeroom, mass-and heat-transfer, improve quality of item.
In the present embodiment, the left side of described first rotating disk 27, second rotating disk 28 and the 3rd rotating disk 30 can be designed to the plane with axes normal, also can be designed to that there is certain taper, if the left side of these three rotating disks is designed to have certain taper, then the right side of the special-shaped machine barrel 8 matched with them also will be designed to have certain taper.
In the present embodiment, the hand of spiral in described first end face screw channel group 271, second end face screw channel group 281 and the 3rd end face screw channel group 301 can be also can be counterclockwise clockwise.
In the present embodiment, in order to make the right-hand member of special-shaped machine barrel 8 and the 3rd rotating disk 30 better be sealed and matched, also comprise baffle plate 29, the right-hand member that described baffle plate 29 is arranged on special-shaped machine barrel 8 makes the right-hand member of special-shaped machine barrel 8 and the 3rd rotating disk 30 be sealed and matched.
Below by reference to the accompanying drawings detailed description is made to embodiments of the present invention, but the present invention is not limited to described embodiment.For the ordinary skill in the art, carry out multiple change, amendment, replacement and distortion when not departing from principle of the present invention and aim to these embodiments still to fall within protection scope of the present invention.
Claims (3)
1. a screw rod and the mixing extrusion moulding apparatus of multiple spiral shell dish combined type, comprise the first heat resistant joint ring (1), second heat resistant joint ring (2), extruder head (3), first radial bearing group (5), second radial bearing group (6), electric heating coil (7), abnormity machine barrel (8), 3rd radial bearing group (9), hopper (10), 4th radial bearing group (11), stand (12), first transmission mechanism (13), first motor (14), First Transition gear (15), first gear (16), first thrust bearing (17), second gear (18), second thrust bearing (19), second transition gear (20), second motor (21), second transmission mechanism (22), 3rd thrust bearing (23), 3rd gear (24), 4th thrust bearing (25) and the 4th gear (26), characterized by further comprising center bolt (4), the first rotating disk (27), the second rotating disk (28) and the 3rd rotating disk (30), wherein
Described center bolt (4) is installed by the projecting shaft (402) of self right-hand member, the first radial bearing group (5) and the second thrust bearing (19) and stand (12) and is located, the projecting shaft (402) of center bolt (4) self right-hand member and the first radial bearing group (5) are positioned at the centre bore of the first rotating disk (27), be provided with center screw channel group (401) at the left end of center bolt (4), described center screw channel group (401) is positioned at outside the centre bore of the first rotating disk (27); Described second heat resistant joint ring (2) is sleeved on center bolt (4) and center bolt (4) is sealed and matched with the left end of the first rotating disk (27);
Described first rotating disk (27) is installed by the second radial bearing group (6) and the first thrust bearing (17) and stand (12) and is located, first rotating disk (27) and the second radial bearing group (6) are positioned at the centre bore of the second rotating disk (28), and the left side of the first rotating disk (27) is provided with the first end face screw channel group (271);
Described second rotating disk (28) is installed by the 3rd radial bearing group (9) and the 3rd thrust bearing (23) and stand (12) and is located, second rotating disk (28) and the 3rd radial bearing group (9) are positioned at the centre bore of the 3rd rotating disk (30), and the left side of the second rotating disk (28) is provided with the second end face screw channel group (281);
Described 3rd rotating disk (30) is installed by the 4th radial bearing group (11) and the 4th thrust bearing (25) and stand (12) and is located, the left side of the 3rd rotating disk (30) is provided with the 3rd end face screw channel group (301), 3rd rotating disk (30) left end excircle is provided with excircle screw channel group (302), and described excircle screw channel group (302) and the 3rd end face screw channel group (301) are connected;
Described special-shaped machine barrel (8) is sleeved in center screw channel group (401), the first end face screw channel group (271), the second end face screw channel group (281), the 3rd end face screw channel group (301) and excircle screw channel group (302), make center screw channel group (401), the first end face screw channel group (271), the second end face screw channel group (281), the 3rd end face screw channel group (301) and excircle screw channel group (302) UNICOM successively, special-shaped machine barrel (8) is coaxial with center bolt (4), the first rotating disk (27), the second rotating disk (28) and the 3rd rotating disk (30);
The right-hand member cylindrical that described hopper (10) is arranged on special-shaped machine barrel (8) is communicated with excircle screw channel group (302); Described extruder head (3) is arranged on the left end of special-shaped machine barrel (8), and the left end of described center screw channel group (401) is communicated with the delivery outlet of extruder head (3), thus the pulverizing of formation material, grinding, extruding, mixing and transfer passages;
Described second motor (21) drives the second transmission mechanism (22) to rotate, described second transmission mechanism (22) drives center bolt (4) to rotate by the second transition gear (20) and the second gear (18), and the second transmission mechanism (22) drives the first rotating disk (27) to rotate by the first gear (16);
Described first motor (14) drives the first transmission mechanism (13) to rotate, described first transmission mechanism (13) drives the second rotating disk (28) to rotate by First Transition gear (15) and the 3rd gear (24), and the first transmission mechanism (13) drives the 3rd rotating disk (30) to rotate by the 4th gear (26).
2. screw rod according to claim 1 and the mixing extrusion moulding apparatus of multiple spiral shell dish combined type, it is characterized in that described first rotating disk (27), the left side of the second rotating disk (28) and the 3rd rotating disk (30) can be designed to the plane with axes normal, also can be designed to that there is certain taper, if the left side of these three rotating disks is designed to have certain taper, then the right side of the special-shaped machine barrel (8) matched with them also will be designed to have certain taper.
3., according to claim 1 screw rod and the mixing extrusion moulding apparatus of multiple spiral shell dish combined type, it is characterized in that the hand of spiral of described first end face screw channel group (271), the second end face screw channel group (281) and the 3rd end face screw channel group (301) can be also can be counterclockwise clockwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510602242.2A CN105172102B (en) | 2015-09-21 | 2015-09-21 | Multiscrew kneads extrusion moulding apparatus with multiple spiral shell disk combined type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510602242.2A CN105172102B (en) | 2015-09-21 | 2015-09-21 | Multiscrew kneads extrusion moulding apparatus with multiple spiral shell disk combined type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105172102A true CN105172102A (en) | 2015-12-23 |
| CN105172102B CN105172102B (en) | 2017-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510602242.2A Active CN105172102B (en) | 2015-09-21 | 2015-09-21 | Multiscrew kneads extrusion moulding apparatus with multiple spiral shell disk combined type |
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| CN (1) | CN105172102B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3609807A (en) * | 1968-09-02 | 1971-10-05 | Sidel Sa | Rotary plate extruding machine |
| GB1415677A (en) * | 1971-11-29 | 1975-11-26 | Pont A Mousson | Plate extruder in particular for plastics material |
| CN2242170Y (en) * | 1995-12-06 | 1996-12-11 | 北京化工大学 | Extruder with mixing zone at end part |
| CN1519100A (en) * | 2003-01-24 | 2004-08-11 | 军 张 | Ginding disc type high-speed extruder |
| CN202781782U (en) * | 2012-06-08 | 2013-03-13 | 北京英博苑科技有限公司 | Bionic mixing-extruding test machine |
| CN103770312A (en) * | 2014-01-06 | 2014-05-07 | 北京化工大学 | Series disc extruder with different diameters, unequal clearances and spiral groove volume change |
| CN205185273U (en) * | 2015-09-21 | 2016-04-27 | 顺德职业技术学院 | Multiscrew and mixing extrusion molding device of multiple spiral shell dish combination formula |
-
2015
- 2015-09-21 CN CN201510602242.2A patent/CN105172102B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3609807A (en) * | 1968-09-02 | 1971-10-05 | Sidel Sa | Rotary plate extruding machine |
| GB1415677A (en) * | 1971-11-29 | 1975-11-26 | Pont A Mousson | Plate extruder in particular for plastics material |
| CN2242170Y (en) * | 1995-12-06 | 1996-12-11 | 北京化工大学 | Extruder with mixing zone at end part |
| CN1519100A (en) * | 2003-01-24 | 2004-08-11 | 军 张 | Ginding disc type high-speed extruder |
| CN202781782U (en) * | 2012-06-08 | 2013-03-13 | 北京英博苑科技有限公司 | Bionic mixing-extruding test machine |
| CN103770312A (en) * | 2014-01-06 | 2014-05-07 | 北京化工大学 | Series disc extruder with different diameters, unequal clearances and spiral groove volume change |
| CN205185273U (en) * | 2015-09-21 | 2016-04-27 | 顺德职业技术学院 | Multiscrew and mixing extrusion molding device of multiple spiral shell dish combination formula |
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| Publication number | Publication date |
|---|---|
| CN105172102B (en) | 2017-09-26 |
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Effective date of registration: 20201119 Address after: Da Xin Zhen Chang Feng Cun Nian Feng Qiao Nan, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: Suzhou top material new material Co.,Ltd. Address before: 528300 Desheng Road, Shunde District, Foshan, Guangdong, Daliang Patentee before: Shunde Polytechnic |