CN106486216B - A kind of plain conductor high polymer coats processing unit (plant) - Google Patents
A kind of plain conductor high polymer coats processing unit (plant) Download PDFInfo
- Publication number
- CN106486216B CN106486216B CN201611001193.8A CN201611001193A CN106486216B CN 106486216 B CN106486216 B CN 106486216B CN 201611001193 A CN201611001193 A CN 201611001193A CN 106486216 B CN106486216 B CN 106486216B
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- melt
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A kind of plain conductor high polymer coats processing unit (plant), melt importing core is arranged in melt importing set and forms the first ligand (12), molding die (6) coordinates forms the second ligand (13) in melt compression head (4), filter bypass body (5) is provided between melt compression head (4) and melt import set (1), cavity between first ligand (12) and the second ligand (13) forms resin-coated runner (8), the resin-coated runner includes straight channel (8.1) successively along melt flows direction, ring coning tower tray road (8.2), pooled portion (8.3) and forming cavity (8.6), filter bypass body (5) is located on the cross section of pooled portion (8.3).The plain conductor high polymer cladding processing unit (plant) sets the design of filter bypass body by pooled portion, Integral design shunts tapering before filter house, the bullet of filter house and shunting taper fit, the runner for successfully solving the problems, such as die head of right angle directly coats with cored wire, clad even compact, pore-free, avoid the sharkskin and screw thread phenomenon on extrudate surface.
Description
Technical field
The present invention relates to the technical field of conductive surface processing, and in particular to a kind of plain conductor high polymer cladding processing dress
Put.
Background technology
Modern industry requires more and more higher, such as the cable of Qinghai-Tibet Plateau Railway to the covering property of wire, due to normal
It is operated in weather conditions severe high and cold region year, therefore must has excellent anti-corrosion, cold-resistant, anti-ultraviolet performance will
Ask.To be selected for this cable outer sheath material has preferable resistant to chemical etching, low temperature resistant and resisting environmental stress and cracking high polymer
Material such as high density polyethylene (HDPE), and add the filler (such as carbon black) of uvioresistant irradiation or add the 3- for improving breaking resistance
10mm reinforcing fiber.Conducting wire cladding technique：1. coated in mould：When the wire of preheating enters die head of right angle, from extruder
Melt is just coated on wire.2. cool down：Wire with clad is by cooling bath, and water temperature gradient must be gradual in cooling bath
Decline, such as 20 DEG C of thermostatted water can be used to a variety of blends of polyethylene；3. spark-testing：Then spark-testing is carried out, is come
The fault of conducting wire cladding insulation is checked,；4. the clad uniformity detects：The diameter and the degree of eccentricity for measuring product again (are namely led
Whether body is at the center of insulating materials)；5. wind：Final products are wrapped on round drum and reel, then led to what is processed
Line does a variety of tests.
Above-mentioned die head of right angle typical case sees the patent document CN101830065A of Wuxi Xidong Energy Technology Ltd., its
A kind of gluing die head for extruder is disclosed, wire is passed through from the hole of central shaft 5 and passed from discharging set 3, in central shaft 5
Vertical direction be provided with melt canal, melt canal connection is enclosed in the gluing chamber 4 around wire, and melt just coats from exit
Outside wire.Above-mentioned die head of right angle and the cladding for being not suitable with high polymer, there is following shortcoming：High polymer molten directly coats
Just pulled out around wire from die orifice, the polymer covering layer of high crystalline is not by being sufficiently tensile orientation, wherein being mingled with gas
Bubble, crystallinity is big, and viscosity is big, and elastic relaxation time is short, more elasticity energy is stored in extruder nib, when it is extruded
External force disappears during nib, elastic abrupt release, sharkskin and screw thread phenomenon is brought to extrudate surface.
Then, the processing unit (plant) of suitable high polymer cladding is designed how simple in constructionly, no sharkskin and screw thread phenomenon,
As the problem of industry general character urgently to be resolved hurrily.
The content of the invention
For defect present in above-mentioned prior art, it is an object of the invention to provide a kind of plain conductor high polymer bag
Processing unit (plant) is covered, is fundamentally solved the problems, such as.
The object of the present invention is achieved like this, and a kind of plain conductor high polymer coats processing unit (plant), including melt imports
Set, melt import core, melt compression head, and melt imports set and melt compression head relative engagement, and melt imports core and is arranged on
Melt, which is imported in set, forms the first ligand, and molding die coordinates forms the second ligand in melt compression head,
Filter bypass body, first ligand and the second ligand are provided between melt compression head and melt import set
Between cavity form resin-coated runner, the resin-coated runner includes straight channel, ring successively along melt flows direction
Coning tower tray road, pooled portion and forming cavity, filter bypass body are located on the cross section of pooled portion；
The filter bypass body includes integrally formed location division, filter house and shunting tapering；The filter house includes more
Individual filter bores；The filter house central part is connected with shunting tapering, and shunt that the outer surface in tapering is sequentially connected includes point
Flow cone face, the compression conical surface and horizontal approaching face.The cavity shunted between the conical surface and filter house forms flow manifold；The melt pressure
Drop-head also includes taper hole, and the cavity between the taper hole and the compression conical surface forms compression runner；
The flow manifold connection compression runner, compression runner connection forming cavity.
Further, the filter house is bullet, and the cone angle of the bullet is 130 ° -150 °.
Further, the filter opening portion of the filter bypass body is the convex circular arc body in opposite direction with melt flows, described convex
The cross section of circular arc body is dome arc, profound a height of 10-20mm of the dome arc, the friendship of profound a height of dome arc and location division
Distance of the midpoint for the string that point is formed to the midpoint of dome arc.
Further, the shunting conical surface is configured to bullet, and the taper of the bullet is (5-10)：The r
For the internal bore radius of location division.
Further, melt compression head includes die head mating holes and die head adjustment hole, and the molding die coordinates described
In die head mating holes, adjusting nut end is pressed against on molding die, and adjusting nut is adjustably connected on die head adjustment hole.
Further, the compression conical surface in the shunting tapering includes the conical surface of two or three different tapers, the cone successively
Taper of the face along melt flows direction reduces one by one.
Further, the taper for the conical surface being connected with horizontal approaching face is 20 °~25 °.
Further, the filter bypass body also includes cored wire guide hole, the axis of cored wire guide hole and the outside cylinder of location division
The axiality in face is 0.001~0.01mm.
Further, the melt compression head also includes importing set mating holes and shunting body mating holes, imports set mating holes
The first perpendicularity positioning table is provided between shunting body mating holes, is determined between shunting body mating holes and taper hole provided with the second perpendicularity
Position platform；The axis verticality of second perpendicularity positioning table and the taper hole is in 0.001~0.01mm.The first perpendicularity positioning
Platform is 0.001~0.01mm on the basis of the second perpendicularity positioning table, and with the depth of parallelism of the second perpendicularity positioning table.
Further, the melt, which imports set, includes core taper hole and front end auxiliary section, front end auxiliary section and the core
The axis coaxle degree of taper hole is 0.001~0.01mm.
The plain conductor high polymer coats processing unit (plant), solves by following technical spirit " how simple in constructionly
Design the processing unit (plant) of suitable high polymer cladding, no sharkskin and screw thread phenomenon " technical problem：
1) pooled portion sets filter bypass body
Pooled portion before straight channel and cored wire are collected sets filter bypass body, by after melt filtration from center to top layer layer
Stream and then layer fluid is compressed in the forming cavity to be crossed with cored wire, on the one hand caused when melt enters forming cavity and the shifting of cored wire
Dynamic direction is consistent, and on the other hand, melt eliminates bubble therein, clad dense uniform by shunting and compression.
2) filter house Integral design shunting tapering
Shunting tapering 5.3 is to carry out extruded cross section to the melt after filtering, and so as to discharge the gas in melt, compression is molten
The effect of volume density, the tubing so extruded just understand dense materials, then compress tapering and layer fluid is compressed step by step and reduces this
The taper of layer fluid, untill meeting cladding proper angle with axis angle, filter house and the Integral design in shunting tapering, collection
Filtering, shunting compression, extruding change taper and one, reach before melt reaches forming cavity to the Pretreatment of melt.
3) bullet of filter house and shunting taper fit
The bullet of filter house and shunting taper fit, form two annular compression runners before and after filter house, are melt
Compression exhaust, while cylindrical melt flow channel is split into the effect of layer fluid.
The present invention compared with prior art, the design of filter bypass body is set by pooled portion, Integral design before filter house
Tapering is shunted, with shunting taper fit, the runner for successfully solving die head of right angle directly coats the bullet of filter house with cored wire
The problem of, clad even compact, pore-free；Arrived when it is extruded nib due to playing the role of compression runner, particularly two
The compression of three stage compression runner, elastic release quantity is small, avoids the sharkskin and screw thread phenomenon on extrudate surface.
Brief description of the drawings
Fig. 1 is the main sectional view for the embodiment one that a kind of plain conductor high polymer of the present invention coats processing unit (plant).
Fig. 2 is that the master of the filter bypass body for the embodiment one that a kind of plain conductor high polymer of the present invention coats processing unit (plant) cuts open
View.
Fig. 3 is the main section view of the main sectional view for the embodiment two that a kind of plain conductor high polymer of the present invention coats processing unit (plant)
Figure.
Fig. 4 is the second ligand and the filtering for the embodiment two that a kind of plain conductor high polymer of the present invention coats processing unit (plant)
The main sectional view of shunting body.
Fig. 5 is that the master of the filter bypass body for the embodiment two that a kind of plain conductor high polymer of the present invention coats processing unit (plant) cuts open
View.
Reference in above-mentioned figure：
1 melt imports set, and 2 centering are bound round, 3 melts importing core, 4 melt compression heads, 5 filter bypass bodies, 6 molding dies, and 7
Adjusting nut, 8 resin-coated runners, the 9 shunting conical surfaces, the 10 compression conical surfaces, 11 horizontal approaching faces, 12 first ligands, 13 second
Ligand
1.1 straight channel holes, 1.2 core taper holes, 1.3 front end auxiliary sections
4.1 die head mating holes, 4.2 die head adjustment holes, 4.3 taper holes, 4.4 import set mating holes, 4.5 shunting body mating holes
4.6 first perpendicularity positioning tables, 4.7 second perpendicularity positioning tables
5.1 location divisions, 5.2 filter houses, 5.3 shunting taperings, 5.4 filter bores, 5.5 cored wire guide holes
8.1 straight channels, 8.2 ring coning tower tray roads, 8.3 pooled portion, 8.4 flow manifolds, 8.5 compression runners, 8.6 forming cavities, 8.7
Guiding in channel
8.51 first compression runners, 8.52 second compression runners, 8.53 the 3rd compression runners
Embodiment
Embodiments of the invention are elaborated below in conjunction with accompanying drawing, but are not limited to the scope of the present invention.
Embodiment one
As illustrated, a kind of plain conductor high polymer cladding processing unit (plant), including melt imports set 1, melt imports core
3rd, melt compression is first 4, filter bypass body 5, molding die 6, centering hoop 2, and melt imports set 1 and first 4 relative engagement of melt compression
And it is located in jointly in centering hoop 2, melt imports core 3 and is arranged in melt importing set 1, and melt, which imports set 1, includes direct current
Road hole 1.1, core taper hole 1.2 and front end auxiliary section 1.3, front end auxiliary section and the axis coaxle degree of the core taper hole are
0.001~0.01mm.Filter bypass body 5 is provided between melt compression first 4 and melt import set 1, melt compression first 4 includes mould
Head mating holes 4.1 and die head adjustment hole 4.2, molding die 6 is provided with die head mating holes 4.1, the end of adjusting nut 7 is pressed against into
On pattern first 6, adjusting nut 7 is adjustably connected on die head adjustment hole 4.2.Melt imports set 1, melt imports core 3
Ligand and melt compression is first 4, the cavity between ligand of molding die 6 forms resin-coated runner 8, the cladding tree
Fat runner 8 includes straight channel 8.1, ring coning tower tray road 8.2, pooled portion 8.3 successively along melt flows direction, and filter bypass body 5 is located at
On the cross section of pooled portion 8.3.
Filter bypass body 5 includes integrally formed location division 5.1, filter house 5.2 and shunting tapering 5.3, the filter house
5.2 include central part and filter opening portion, and the filter opening portion includes multiple filter bores 5.4；The central part integrally connected of filter house 5.2
Have and shunt tapering 5.3, include the shunting conical surface 9, the compression conical surface 10 and the level that the outer surface in shunting tapering 5.3 is sequentially connected import
Face 11.The cavity shunted between the conical surface 9 and filter house 5.2 forms flow manifold 8.4；The melt compression first 4 also includes taper hole
4.3, the cavity between the taper hole 4.3 and the compression conical surface 10 forms compression runner 8.5.Sky between molding die 6 and cored wire P
Chamber is configured to forming cavity 8.6.Filter house 5.2 is bullet, and the cone angle of the bullet is 130 °~150 °.
The filter bypass body 5 also includes cored wire guide hole 5.5, the axis of cored wire guide hole and the external cylindrical surface of location division it is same
Axle degree is 0.001~0.01mm.Multiple filter bores 5.4 in the filter opening portion are along using the axis of cored wire guide hole 5.5 as the same of the center of circle
Heart circle distribution；Importing core 3 includes cored wire entrance hole 3.1, and the melt compression first 4 also includes importing set mating holes 4.4 and divided
Fluid mating holes 4.5, import between set mating holes 4.4 and shunting body mating holes 4.5 and be provided with the first perpendicularity positioning table 4.6, point
The second perpendicularity positioning table 4.7 is provided between fluid mating holes 4.5 and taper hole 4.3；Second perpendicularity positioning table 4.7 and the cone
The axis verticality in hole 4.3 is in 0.001~0.01mm.The first perpendicularity positioning table 4.6 is with the second perpendicularity positioning table 4.7
On the basis of, the depth of parallelism with the second perpendicularity positioning table 4.7 is 0.001~0.01mm.The location division of the filter bypass body 5
5.1 coordinate in the press-assembling surface of melt importing set 1 and are positioned between the second perpendicularity positioning table 4.7；Pass through positioning table and taper hole
The perpendicularity of axis and the depth of parallelism of two positioning tables can guarantee that the cored wire guide hole 5.4 of filter bypass body and the cored wire of importing core are led
It is coaxial to enter hole 3.1, such cored wire P is not scraped off when through cored wire guide hole 5.4 and cored wire entrance hole 3.1.
Cavity between the taper hole of molding die 6 and the compression conical surface 10 is formed as guiding in channel 8.7, in order to adjust into
The compression degree of the resin of forming cavity 8.8 between pattern first 6 and cored wire P, die head adjustment hole 4.2 is screwed in by adjusting nut 7
Position-adjustable guiding in channel 8.7 resin flow.The shunting conical surface 9 is configured to bullet, and the taper of the bullet is (5-
10)：The r is the radius of pooled portion 8.3.
Embodiment two
In order that the fluid inlet angle of compression runner cladding core wire is more suitable, the compression conical surface 10 in the shunting tapering 5.3 is successively
The first shunting conical surface 10.1, second including head and the tail connection shunts the conical surface 10.2 and the 3rd and shunts the conical surface 10.3, the taper hole 4.3
Also corresponding the first taper hole 4.31 and the second taper hole 4.32 for including head and the tail connection successively, the first shunting conical surface 10.1 and first
The first compression runner 8.51 is formed between taper hole 4.31, the second pressure is formed between the second shunting taper hole 4.32 of the conical surface 10.2 and second
Contracting runner 8.52, the described 3rd shunts the compression of formation the 3rd runner 8.53 between the conical surface 10.3 and the taper hole of the molding die 6,
The 3rd compression runner 8.53 connects molding runners, and the 3rd compresses the angle of runner and axis less than the second compression runner and axle
The angle of line, the angle of the second compression runner and axis are less than the angle of the first compression runner and axis.3rd pressure
The angle of contracting runner and axis is at 20 °~25 °.
Or the compression conical surface 10 in the shunting tapering 5.3 includes the first of head and the tail connection and shunts the conical surface 10.1 and the successively
The three shunting conical surfaces 10.3；Correspondingly, the taper hole 4.3 also only includes the first taper hole 4.31.The first shunting He of the conical surface 10.1
Form the first compression runner 8.51 between first taper hole 4.31, the taper hole of the 3rd the shunting conical surface 10.3 and the molding die 6 it
Between form the 3rd compression runner 8.53, the 3rd compression runner 8.53 connects molding runners, the 3rd compression runner and axis
Angle is less than the angle of the first compression runner and axis.The angle of the 3rd compression runner and axis is at 20 °~25 °.
In addition, the filter opening portion 5.2 of the filter bypass body 5 is the convex circular arc body in opposite direction with melt flows.Dome arc
Flowing of the body to melt has the more outstanding shunting action from center to surrounding.The cross section of the convex circular arc body is dome
Arc, the profound high H of the dome arc is 10-20mm, the midpoint of profound a height of dome arc and the string of the intersection point composition of location division 5.1
To the distance at the midpoint of dome arc.
Other structures are same as Example 1.
The plain conductor high polymer coats processing unit (plant), is cooperateed with by the design of filter bypass body, and with outer die casing
Coordinate, the runner for successfully solving the problems, such as die head of right angle directly coats with cored wire, clad even compact, pore-free；When it
The compression of runner, particularly two to three stage compression runner is compressed due to playing the role of when being extruded nib, elastic release quantity is small, keeps away
The sharkskin and screw thread phenomenon on extrudate surface are exempted from.
Claims (10)
1. a kind of plain conductor high polymer coats processing unit (plant), including melt imports set (1), melt imports core (3), melt pressure
Drop-head (4), melt import set and melt compression head relative engagement, and melt importing core is arranged in melt importing set and forms first
Ligand (12), molding die (6) coordinates forms the second ligand (13) in melt compression head (4),
Characterized in that,
Be provided with filter bypass body (5) between melt compression head (4) and melt import set (1), first ligand (12) and
Cavity between second ligand (13) forms resin-coated runner (8), and the resin-coated runner is along melt flows direction
Include straight channel (8.1), ring coning tower tray road (8.2), pooled portion (8.3) and forming cavity (8.6) successively, filter bypass body (5) is located at
On the cross section of pooled portion (8.3)；
The filter bypass body (5) includes integrally formed location division (5.1), filter house (5.2) and shunting tapering (5.3)；Institute
Stating filter house includes multiple filter bores (5.4)；Filter house (5.2) central part is connected with shunting tapering (5.3), shunting
What the outer surface in tapering (5.3) was sequentially connected includes the shunting conical surface (9), the compression conical surface (10) and horizontal approaching face (11)；Shunting
Cavity between the conical surface (9) and filter house (5.2) forms flow manifold (8.4)；The melt compression head (4) also includes taper hole
(4.3), the cavity between the taper hole (4.3) and the compression conical surface (10) forms compression runner (8.5)；
Flow manifold (8.4) the connection compression runner (8.5), compression runner (8.5) connection forming cavity (8.6).
2. plain conductor high polymer as claimed in claim 1 coats processing unit (plant), it is characterised in that the filter house is taper
Body, the cone angle (α) of the bullet is 130 ° -150 °.
3. plain conductor high polymer as claimed in claim 1 coats processing unit (plant), it is characterised in that the filter bypass body (5)
Filter house (5.2) be the convex circular arc body in opposite direction with melt flows, the cross section of the convex circular arc body is dome arc, described
Profound high (H) of dome arc is 10-20mm, and the midpoint of the string of the intersection point composition of profound a height of dome arc and location division (5.1) is arrived
The distance at the midpoint of dome arc.
4. plain conductor high polymer as claimed in claim 1 coats processing unit (plant), it is characterised in that the shunting conical surface (9) is configured to
Bullet, the taper of the bullet is (5-10)：The r is the internal bore radius of location division (5.1).
5. plain conductor high polymer as claimed in claim 4 coats processing unit (plant), it is characterised in that melt compression head (4) includes
Die head mating holes (4.1) and die head adjustment hole (4.2), the molding die (6) coordinate in the die head mating holes, adjust spiral shell
Female (7) end is pressed against on molding die, and adjusting nut is adjustably connected on die head adjustment hole (4.2).
6. plain conductor high polymer as claimed in claim 5 coats processing unit (plant), it is characterised in that shunting tapering (5.3)
The compression conical surface (10) include the conical surfaces of two or three different tapers successively, taper of the conical surface along melt flows direction is one by one
Reduce.
7. plain conductor high polymer as claimed in claim 6 coats processing unit (plant), it is characterised in that with horizontal approaching face (11) even
The taper of the conical surface connect is 20 °~25 °.
8. plain conductor high polymer coats processing unit (plant) as described in claim 1-7 is any, it is characterised in that the filter bypass
Body (5) also includes cored wire guide hole (5.5), the axiality of the axis of cored wire guide hole and the external cylindrical surface of location division for 0.001~
0.01mm。
9. plain conductor high polymer coats processing unit (plant) as described in claim 1-7 is any, it is characterised in that the melt compression
Head (4) also includes importing set mating holes (4.4) and shunting body mating holes (4.5), imports set mating holes (4.4) and shunting body coordinates
The first perpendicularity positioning table (4.6) is provided between hole (4.5), second is provided between shunting body mating holes (4.5) and taper hole (4.3)
Perpendicularity positioning table (4.7)；The axis verticality of second perpendicularity positioning table and the taper hole is in 0.001~0.01mm；It is described
First perpendicularity positioning table is 0.001 on the basis of the second perpendicularity positioning table, and with the depth of parallelism of the second perpendicularity positioning table
~0.01mm.
10. plain conductor high polymer coats processing unit (plant) as described in claim 1-7 is any, it is characterised in that the melt is led
Entering set (1) includes core taper hole (1.2) and front end auxiliary section (1.3), front end auxiliary section and the axis coaxle of the core taper hole
Spend for 0.001~0.01mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611001193.8A CN106486216B (en) | 2016-11-14 | 2016-11-14 | A kind of plain conductor high polymer coats processing unit (plant) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611001193.8A CN106486216B (en) | 2016-11-14 | 2016-11-14 | A kind of plain conductor high polymer coats processing unit (plant) |
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| CN106486216A CN106486216A (en) | 2017-03-08 |
| CN106486216B true CN106486216B (en) | 2017-12-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4091064A (en) * | 1973-08-22 | 1978-05-23 | Dainichi Nihon Densen Kabushiki Kaisha | Process for producing electric cable insulated with cured polyolefin |
| CN204076765U (en) * | 2014-07-11 | 2015-01-07 | 东莞市松湖塑料机械有限公司 | A kind of extrusion die |
| CN105196514B (en) * | 2015-07-29 | 2019-01-18 | 日丰企业集团有限公司 | A kind of extrusion molding mould of online biaxial orientation plastics heavy caliber pipe |
| CN105383032B (en) * | 2015-10-27 | 2017-12-19 | 浙江中财管道科技股份有限公司 | A kind of PVC pipeline extrusion die for improving product inwall flatness |
| CN206564153U (en) * | 2016-11-14 | 2017-10-17 | 盐城工学院 | A kind of plain conductor high polymer coats processing unit (plant) |
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Effective date of registration: 20191119 Address after: Room 609, phase I, cross border e-commerce Industrial Park, 1151 Yan'an Road, bengshan District, Bengbu City, Anhui Province Patentee after: Bengbu qiarc Intellectual Property Service Co., Ltd Address before: 224051 Yancheng City, Century Avenue, Jiangsu research and development building, No. 1166 Patentee before: Yangcheng Institute of Technology |
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Effective date of registration: 20211216 Address after: 224500 No.11 Panyang Avenue, dongkan high tech Industrial Park, Binhai County, Yancheng City, Jiangsu Province Patentee after: Jiangsu Koino Valve Co.,Ltd. Address before: Room 609, phase I, cross border e-commerce Industrial Park, 1151 Yan'an Road, bengshan District, Bengbu City, Anhui Province Patentee before: Bengbu qiarc Intellectual Property Service Co.,Ltd. |
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