CN105922623B - A kind of fire trapping ring core mould - Google Patents

A kind of fire trapping ring core mould Download PDF

Info

Publication number
CN105922623B
CN105922623B CN201610324692.4A CN201610324692A CN105922623B CN 105922623 B CN105922623 B CN 105922623B CN 201610324692 A CN201610324692 A CN 201610324692A CN 105922623 B CN105922623 B CN 105922623B
Authority
CN
China
Prior art keywords
plate
material returned
mould
pin
adpting flange
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
Application number
CN201610324692.4A
Other languages
Chinese (zh)
Other versions
CN105922623A (en
Inventor
韦雄生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Lesso Security Technology Co ltd
Original Assignee
Heshan Liansu Industrial Development Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Heshan Liansu Industrial Development Co Ltd filed Critical Heshan Liansu Industrial Development Co Ltd
Priority to CN201610324692.4A priority Critical patent/CN105922623B/en
Publication of CN105922623A publication Critical patent/CN105922623A/en
Application granted granted Critical
Publication of CN105922623B publication Critical patent/CN105922623B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/022Moulds for compacting material in powder, granular of pasta form

Abstract

The present invention relates to fire trapping ring technical field of processing equipment, specifically disclose a kind of fire trapping ring core mould, including punch-pin, cavity plate, material returned mould, core rod and adpting flange, one end of the core rod is fixed on adpting flange center, the cavity plate is set on core rod and its one end is fixed with adpting flange, the die cavity of fire trapping ring core can be suppressed by being formed between the core rod and cavity plate, one end of the material returned mould is provided with alternate connecting pin, the material returned die sleeve sets into die cavity and its connecting pin and is connected through adpting flange with material returned mould connecting plate, one end of the punch-pin is connected with punch-pin connecting plate, its other end can be arranged to be formed into die cavity and be slidably matched.The fire trapping ring core that mould disclosed by the invention is produced is less prone to phenomena such as scarce side collapses angle, and Forming Quality is high, is easy to the later stage to be fitted together with fire trapping ring main body.

Description

A kind of fire trapping ring core mould
Technical field
The present invention relates to fire trapping ring technical field of processing equipment, more particularly to a kind of fire trapping ring core mould.
Background technology
Important component of the fire trapping ring core as fire trapping ring, the density of core will be controlled in certain scope, Suitable cost performance can be reached.The excessively closely knit effect that can influence fire-retardant expansion, while can also increase cost.It is too loose to increase The difficulty being stripped after shaping, also easily cause core dry after dimensional contraction seriously so as to influence assemble quality.Currently on the market Fire trapping ring core mould is the molding mode for once going out two semicylinders using a set of mould, due to by two The influence of the wedge angle increase frictional resistance factor of individual semicircle, easily causes loose core to produce straight flange during the material returned and sink The defects of collapsing angle with scarce side, both influences product appearance quality after main body is attached to, and feed supplement of doing over again again can be only achieved quality requirement, Cost of labor is added, reduces production efficiency.
The content of the invention
In view of this, it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of high back-fire relief of Forming Quality Enclose core mould.
In order to solve the above-mentioned technical problem, the present invention is realized using following scheme:
A kind of fire trapping ring core mould, including punch-pin, cavity plate, material returned mould, core rod and adpting flange, the core rod One end be fixed on adpting flange center, the cavity plate is set on core rod and its one end is fixed with adpting flange, the mould The die cavity of fire trapping ring core can be suppressed by being formed between core and cavity plate, and one end of the material returned mould is provided with alternate connecting pin, institute State material returned die sleeve and set into die cavity and its connecting pin and be connected through adpting flange with material returned mould connecting plate, one end of the punch-pin with it is convex Mould connecting plate connects, and its other end can be arranged to be formed into die cavity and be slidably matched.
In the present invention, die cavity is formed between core rod and cavity plate, this die cavity is a continuous cavity, rather than as existing skill It is divided into the die cavity of two semicylinders in art, therefore in the die cavity of the present invention after powder filler material, by the compacting of punch-pin, A complete fire trapping ring core in hollow columnar can be prepared into, what reduction core moved in die cavity to greatest extent rubs Resistance is wiped, therefore fire trapping ring core can be avoided to occur the phenomenon that scarce side collapses angle during the material returned, ensure that the shaping matter of core Amount, thickness, width and the height dimension of fire trapping ring core are guaranteed, it is ensured that the standardized production of follow-up cutting and assembly process Operation.
The connecting pin of material returned mould is connected through adpting flange with material returned mould connecting plate, and material returned mould connecting plate can connect driving dress Put, drive device driving material returned mould connecting plate drives material returned mould to be slidably matched in die cavity(Slide up and down), punch-pin connection Plate is also connected with drive device to realize that it is slidably matched in die cavity(Slide up and down), punch-pin pushes in the pressurization of drive device After type fire trapping ring core is made, punch-pin is retracted, and material returned mould ejects fire trapping ring core under the power of drive device.Material returned mould The alternate setting of connecting pin, such as connecting pin is arranged to 4, adpting flange is provided with corresponding 4 lines and cuts hole, connecting pin and line Cut hole and coordinate the limitation that can be achieved to material returned mould so that material returned mould will not produce radial rotating in die cavity.
Mould in this patent is changing the geometry of the parts such as punch-pin, core rod, cavity plate, material returned mould, such as by cylinder Make oval body, hexahedron etc. into, it is possible to realize the processing and forming to a variety of geometrical shaped body fire trapping ring cores.
The cavity plate is provided with material clean-up port with one end that adpting flange is mutually fixed.The setting of material clean-up port can remove more The waste material product block that remaining powder accumulation forms, it is ensured that mould can in the case of without taking apart maintains easily, and improving mould makes With life-span and production capacity.
The edge of the adpting flange is provided with prominent and flange ear separately, between the material clean-up port of the cavity plate Form the socket connection portion corresponding with flange ear.
Adpting flange is as the part for fixing cavity plate, material returned mould, core rod, therefore the fixation of adpting flange itself seems particularly It is important, by setting flange ear, then adpting flange can be fixed on other components, such as in frame by flange ear, so that All parts in mould are fixed.Socket connection portion of the flange ear to cavity plate on adpting flange forms spacing so that cavity plate It is more firm with being fixedly connected for adpting flange.The alternate space of flange ear is corresponding with the material clean-up port of cavity plate, therefore, On the premise of ensureing cavity plate and adpting flange stable connection, ensure the discharge of waste material product block.
The adpting flange center is provided with through hole, and one end of the core rod is provided with mutually fits with adpting flange central through hole shape The protuberance answered.The protuberance of core rod is embedded into through hole, and through hole is preliminary to core rod progress spacing, then passes through further screw Connection or other means connection, can strengthen the stability of core rod in the course of the work.
The punch-pin connecting plate is provided with steam vent, can avoid punch-pin go downwards in die cavity formed seal closure space and it is difficult With pressurization, while prevent from vacuumizing when punch-pin is up in die cavity and causing core to deform.
Further, between the core rod and adpting flange, between cavity plate and adpting flange, material returned mould connecting pin and material returned mould Fastened between connecting plate, between punch-pin and punch-pin connecting plate by screw.Adpting flange, core rod, cavity plate, punch-pin connecting plate, Punch-pin, material returned mould connecting pin, material returned mould connecting plate are provided with corresponding screw hole, are fastened each part by way of screw, It is easily installed in dismounting.
Also include upper connective plate, middle yoke plate and lower linking plate, the upper connective plate is connected by the axis of guide with middle yoke plate, described middle Plate is connected by connecting rod with lower linking plate, and pressurized cylinder is fixed with the upside of the upper connective plate, its piston rod through upper connective plate with it is convex Mould connecting plate is connected, and material returned cylinder is fixed with the downside of the lower linking plate, and its piston rod connects through lower linking plate and material returned mould connecting plate Connect, the middle yoke plate is provided with the through hole being adapted with adpting flange size, and the flange ear of adpting flange is fixed with middle yoke plate Connection.
Pressurized cylinder and material returned cylinder can be cylinder or oil cylinder, and the size of pressurization is adjusted by adjusting pressure medium.Pressurization Cylinder can use twin shaft double action stroke adjustable type, and then adjust the compression travel of core.During adpting flange is fixed on by flange ear On yoke plate, flange ear is provided with screw hole, is connected by screw with middle yoke plate, so as to the other portions of fixation after adpting flange fixation Part.
Also include slide plate, the slide plate is arranged between pressurized cylinder piston rod end and punch-pin connecting plate and is set in guiding On axle, its upside is connected with pressurization cylinder piston rod, and downside is connected with punch-pin connecting plate.
Slide plate is set on the axis of guide so that it is steadily slided up and down under the driving of pressurized cylinder, such as the four of square slide plate Individual corner is set on the axis of guide, and further, the position that slide plate runs through sets linear bearing to be further ensured that slide plate slides Stability.
The upside of the slide plate and the downside of material returned mould connecting plate by floating connection head and floating connection flange respectively with Pressurization cylinder piston rod connects with material returned cylinder piston rod.The floating of connecting portion is realized by floating connection head and floating connection flange Connection, it is ensured that the reliability of each part and long-life.
The spacing regulation dress of material returned mould that can stop that material returned line enters is fixed with the upside of the lower section of the material returned mould, lower linking plate Put.
The material returned mould means for adjusting limit of movement includes being fixed on the nut seat of the encirclement material returned cylinder piston rod on the upside of lower linking plate, The nut seat is provided with the hollow adjusting screw rod for surrounding pusher cylinder piston rod, and the top of the nut seat, which is provided with, to be used in locking The back tightening nut of empty adjusting screw rod.
When material returned cylinder retract action, material returned mould slide downward in the die cavity that cavity plate and core rod form, until material returned mould connects Fishplate bar, which bumps against hollow adjusting screw rod, to be stopped.Therefore, the height stretched out by adjusting hollow adjusting screw rod in nut seat can limit The descending stroke of material returned mould processed changes the volume of die cavity to change powder filler material so as to realizing any regulation of die cavity height Amount number come ensure core need compactness.It can ensure that material returned mould is hit by locking back tightening nut after the completion of regulation After will not produce loosening and conjugate.
Further, the operation of each part can be controlled by electric control system, electrical system is using prior art Can.
Compared with prior art, the present invention has the advantages that:(1)Core is reduced to greatest extent to transport in die cavity Dynamic frictional resistance, making loose core, all without producing, straight flange sink and scarce side collapses angle etc. after the demoulding during the material returned Defect, ensure that the Forming Quality of core, and thickness, width and the height dimension of core are guaranteed, it is ensured that follow-up cutting and dress Standardized production operation with process;(2)The height that material returned mould means for adjusting limit of movement can arbitrarily adjust die cavity is filled to change Dusty material amount number come ensure core need compactness, after the completion of regulation lock back tightening nut can ensure material returned mould by Loosening will not be produced after impact and is shifted;(3)The connecting portion of drive device and mould uses floating connection mode, it is ensured that mould And reliability and the long-life of guiding parts;(4)Cavity plate is provided with material clean-up port, convenient to remove what excessive powder accumulation formed Waste material product is fast, it can be ensured that mould can in the case of without taking apart maintains easily, and improves die life and production Ability;(5)Multiple steam vents are provided with punch-pin connecting plate, can avoid punch-pin go downwards in die cavity formed seal closure space and Be difficult to pressurize, at the same prevented also from punch-pin it is up in die cavity when vacuumize and cause core to deform;(6)Appropriate products specification is wide It is general, the processing and forming of the fire trapping ring core of all specifications such as 50,75,110,160 is applied to, it is expansible to be applied to oval body, circle The processing and forming of the hollow core of any geometrical shaped body such as cylinder, hexahedron.
Brief description of the drawings
Fig. 1 is prior art mold structural representation;
Fig. 2 is the core material structure schematic diagram produced using prior art mold;
Fig. 3 is embodiment die cut view;
Fig. 4 is embodiment mould structure schematic diagram;
Fig. 5 is embodiment mould explosive view;
Fig. 6 embodiment mould installion schematic diagrames;
Fig. 7 is the side view of structure shown in Fig. 6;
Fig. 8 embodiment mould installion schematic diagrames.
Embodiment
In order to allow those skilled in the art to more fully understand technical scheme, below in conjunction with the accompanying drawings to the present invention It is further elaborated.
Embodiment
Mould of the prior art is called as shown in Figure 1, and it includes punch-pin 500, cavity plate 300 and material returned mould 400, and it has Have the die cavity of two semicircular bodies, influenceed by wedge angle 301, as shown in Fig. 2 shaping core easily occur straight flange sink or it is scarce While the defects of collapsing angle.
As shown in Fig. 3 ~ 5, a kind of fire trapping ring core mould, including punch-pin 500, cavity plate 300, material returned mould 400, core rod 200 and adpting flange 100, one end of the core rod 200 be fixed on the center of adpting flange 100, the cavity plate 300 is set in On core rod 200 and its one end is fixed with adpting flange 100, and fire trapping ring can be suppressed by being formed between the core rod 200 and cavity plate 300 The die cavity of core, one end of the material returned mould 400 are provided with alternate connecting pin 410, the material returned mould 400 be arranged into die cavity and its Connecting pin 410 is connected through adpting flange 100 with material returned mould connecting plate 700, and one end and the punch-pin connecting plate of the punch-pin 500 connect 600 are connect, its other end can be arranged to be formed into die cavity and be slidably matched.
The cavity plate 300 is provided with material clean-up port 310 with one end that the phase of adpting flange 100 is fixed.The adpting flange 100 Edge be provided with prominent and flange ear 110 separately, formed between the material clean-up port 310 of the cavity plate 300 and flange The corresponding socket connection portion 320 of ear 110.The center of adpting flange 100 is provided with through hole 120, and one end of the core rod 200 is set There is the protuberance 210 being adapted with the shape of 100 central through hole of adpting flange 120.The punch-pin connecting plate 600 is provided with steam vent 610。
As shown in figure 5, the adpting flange 100 is provided with interior hexagonal cylindrical head sunk screw 130, pass through this and core rod 200th, the end connection of cavity plate 300, the punch-pin connecting plate 600 is provided with interior hexagonal cylindrical head sunk screw 620, by this with One end connection of punch-pin 500.The material returned mould connecting plate 700 is provided with interior hexagonal cylindrical head sunk screw 710, by this with moving back Material mould connecting pin 410 connects.
As shown in Fig. 6 to 8, in addition to upper connective plate 1300, middle yoke plate 1400 and lower linking plate 1500, the upper connective plate 1300 Downside is fixed with stiffener plate 1310, and the downside of middle yoke plate 1400 is provided with upper connective plate 1300 described in stiffener plate 1410. by leading Be connected to axle 1700 with middle yoke plate 1400, the middle yoke plate 1400 is connected by connecting rod 1800 with lower linking plate 1500, it is described on The upside of yoke plate 1300 is fixed with pressurized cylinder 1100, and its piston rod is connected through upper connective plate 1300 with slide plate 1600, and piston rod Floating connection head and floating connection flange are provided between slide plate 1600(Not shown in figure), the punch-pin connecting plate 600 is with sliding The downside connection of plate 1600, the slide plate 1600 is set on the axis of guide 1700, and which is provided with linear bearing 1610.Under described The downside of yoke plate 1500 is fixed with material returned cylinder 1200, and its piston rod is connected through lower linking plate 1500 with material returned mould connecting plate 700, and Piston rod is connected by floating connection first 900 and floating connection flange 800 with material returned mould connecting plate 700, the floating connection method Orchid 800 is provided with interior hexagonal cylindrical head sunk screw 810, is connected by this with material returned mould connecting plate 700.The middle yoke plate 1400 The through hole being adapted with the size of adpting flange 100 is provided with, and the flange ear 110 of adpting flange 100 is fixed with middle yoke plate 1400 Connection.
Lower section, the upside of lower linking plate 1500 of the material returned mould 400 are fixed with the material returned mould limit that can stop that material returned line enters Position adjusting means 1900.The material returned mould means for adjusting limit of movement 1900 includes being fixed on the encirclement material returned cylinder of the upside of lower linking plate 1500 The nut seat 1910 of 1200 piston rods, the nut seat 1910 are provided with the hollow adjusting screw rod for surrounding the piston rod of charging cylinder 1200 1930, the top of the nut seat 1910 is provided with the back tightening nut 1920 for being used for locking hollow adjusting screw rod 1930.
The wherein specific implementation of above-described embodiment only present invention, its description is more specific and detailed, but can not Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, Without departing from the inventive concept of the premise, various modifications and improvements can be made, these obvious alternative forms are equal Belong to protection scope of the present invention.

Claims (8)

  1. A kind of 1. fire trapping ring core mould, it is characterised in that including punch-pin, cavity plate, material returned mould, core rod and adpting flange, One end of the core rod is fixed on adpting flange center, and the cavity plate is set on core rod and its one end is consolidated with adpting flange It is fixed, the die cavity that can suppress fire trapping ring core is formed between the core rod and cavity plate, one end of the material returned mould is provided with alternate Connecting pin, the material returned die sleeve set into die cavity and its connecting pin and are connected through adpting flange with material returned mould connecting plate, the punch-pin One end be connected with punch-pin connecting plate, its other end can be arranged into die cavity formed be slidably matched;The cavity plate and adpting flange phase Fixed one end is provided with material clean-up port;The edge of the adpting flange is provided with prominent and flange ear separately, described recessed The socket connection portion corresponding with flange ear is formed between the material clean-up port of mould.
  2. 2. fire trapping ring core mould according to claim 1, it is characterised in that the adpting flange center is provided with logical Hole, one end of the core rod are provided with the protuberance being adapted with adpting flange central through hole shape.
  3. 3. fire trapping ring core mould according to claim 1, it is characterised in that the punch-pin connecting plate is provided with row Stomata.
  4. 4. the fire trapping ring core mould according to claim 1 or 2 or 3, it is characterised in that also including upper connective plate, in Yoke plate and lower linking plate, the upper connective plate are connected by the axis of guide with middle yoke plate, and the middle yoke plate is connected by connecting rod and lower linking plate Connect, pressurized cylinder is fixed with the upside of the upper connective plate, its piston rod is connected through upper connective plate with punch-pin connecting plate, the lower linking plate Downside be fixed with material returned cylinder, its piston rod is connected through lower linking plate with material returned mould connecting plate, the middle yoke plate be provided with and even The adaptable through hole of acting flange size, and the flange ear of adpting flange is fixedly connected with middle yoke plate.
  5. 5. fire trapping ring core mould according to claim 4, it is characterised in that also set including slide plate, the slide plate Put between pressurized cylinder piston rod end and punch-pin connecting plate and be set on the axis of guide, its upside connects with pressurization cylinder piston rod Connect, downside is connected with punch-pin connecting plate.
  6. 6. fire trapping ring core mould according to claim 5, it is characterised in that the upside of the slide plate and material returned mould The downside of connecting plate is connected with pressurization cylinder piston rod and material returned cylinder piston rod respectively by floating connection head and floating connection flange.
  7. 7. fire trapping ring core mould according to claim 4, it is characterised in that the lower section of the material returned mould, the second line of a couplet The material returned mould means for adjusting limit of movement that can stop that material returned line enters is fixed with the upside of plate.
  8. 8. fire trapping ring core mould according to claim 7, it is characterised in that the material returned mould means for adjusting limit of movement Including the nut seat for the encirclement material returned cylinder piston rod being fixed on the upside of lower linking plate, the nut seat, which is provided with, surrounds charging cylinder piston The hollow adjusting screw rod of bar, the top of the nut seat are provided with the back tightening nut for being used for locking hollow adjusting screw rod.
CN201610324692.4A 2016-05-17 2016-05-17 A kind of fire trapping ring core mould Active CN105922623B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610324692.4A CN105922623B (en) 2016-05-17 2016-05-17 A kind of fire trapping ring core mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610324692.4A CN105922623B (en) 2016-05-17 2016-05-17 A kind of fire trapping ring core mould

Publications (2)

Publication Number Publication Date
CN105922623A CN105922623A (en) 2016-09-07
CN105922623B true CN105922623B (en) 2018-03-13

Family

ID=56841016

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610324692.4A Active CN105922623B (en) 2016-05-17 2016-05-17 A kind of fire trapping ring core mould

Country Status (1)

Country Link
CN (1) CN105922623B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114850732B (en) * 2022-06-21 2024-01-23 齐齐哈尔大学 Preparation method of graphene reinforced tin-based composite solder

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201997562U (en) * 2010-10-21 2011-10-05 宁国双宁机械有限公司 Extruding die for upper shaft sleeve
CN203778670U (en) * 2014-04-10 2014-08-20 江门市安诺特炊具制造有限公司 Novel stockpot forging and pressing die structure
CN204247824U (en) * 2014-11-04 2015-04-08 盛瑞传动股份有限公司 A kind of square tube mould
CN204523985U (en) * 2014-11-21 2015-08-05 广东骏汇汽车科技股份有限公司 Thickened product mould
CN205767666U (en) * 2016-05-17 2016-12-07 鹤山联塑实业发展有限公司 A kind of fire trapping ring core mould

Also Published As

Publication number Publication date
CN105922623A (en) 2016-09-07

Similar Documents

Publication Publication Date Title
CN103894581B (en) A kind of die casting for manufacturing air blade
CN204564809U (en) A kind of T-shaped compound die for continuously extruding preparing super fine crystal material
CN204367109U (en) A kind of easily demoulding preformer
CN202984424U (en) Side scrap revision composite die for bent axle
CN105922623B (en) A kind of fire trapping ring core mould
CN109353060A (en) Fro hydraulic driving machinery formula powder former
CN206382419U (en) A kind of auto parts diel
CN109277565B (en) Powder forming device and forming method
CN104309029B (en) There is the tire vertical compression mould of limit function
CN204220947U (en) One is vertical penetrates sand machine
CN206981470U (en) A kind of shaping mould for short thin-walled tubes part
CN103085311B (en) Stroke positioning device of powder forming hydraulic press
CN205767666U (en) A kind of fire trapping ring core mould
CN204149374U (en) There is the tire vertical compression mould of limit function
CN201240033Y (en) Mould for composite long rod insulator injection molding machine
CN208450230U (en) A kind of multidirectional single lead screw ex truding briquetting machine
CN203972860U (en) The shaping dies of a kind of powder metallurgy bevel gear
CN203623008U (en) Die used for powder forming clutch
CN206840544U (en) Polytetrafluoroethylene (PTFE) tubular article moulding press
CN206633201U (en) A kind of adjustable road pipe mold of external mold
CN209363560U (en) A kind of wheel hub sand core processing tool
CN105922620B (en) A kind of manufacture processing method of fire trapping ring core
CN208758619U (en) A kind of efficient extrusion device of powder metallurgy
CN204074793U (en) Single lead screw ex truding briquetting machine
CN206747564U (en) A kind of alloy die cast mold base

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20230930

Address after: 529727 Heshan Industrial City and Heshun Road 647, Heshan City, Jiangmen City, Guangdong Province

Patentee after: GUANGDONG LESSO SECURITY TECHNOLOGY Co.,Ltd.

Address before: 529725 No. 38 Jianxi Road, Taoyuan Town, Heshan City, Jiangmen City, Guangdong Province

Patentee before: HESHAN LESSO INDUSTRIAL DEVELOPMENT Co.,Ltd.