CN108724759A - A kind of fiberglass frame of filter element former - Google Patents
A kind of fiberglass frame of filter element former Download PDFInfo
- Publication number
- CN108724759A CN108724759A CN201810766093.7A CN201810766093A CN108724759A CN 108724759 A CN108724759 A CN 108724759A CN 201810766093 A CN201810766093 A CN 201810766093A CN 108724759 A CN108724759 A CN 108724759A
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- Prior art keywords
- mold
- filter element
- groove
- air
- frame
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- 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.)
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Classifications
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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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/32—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
- B29C2035/046—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames dried air
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Filtering Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a kind of fiberglass frame of filter element former, including mold and the roll shaft for being connected to both mold ends, organic frame is arranged in the both mold ends, and the roll shaft of the both mold ends is connect with gantry rotation respectively；Interlaced line embedding groove is distributed in the die surface.By using former described herein, the glass fibre item for impregnating resin insertion is fixed in line embedding groove, etc. one-pass molding glass steel frame of filter element after resin solidifications, high in machining efficiency, no waste mine, air permeability rate and intensity are higher.
Description
Technical field
The present invention relates to a kind of fiberglass frame of filter element formers.
Background technology
The existing prior art is to utilize double-layered cylinder mold, the fiberglass idiosome of tubulose is first molded, then in fiberglass
Trepanning on idiosome.Such processing method, first, it is less efficient；Second, the raw material being cut is wasted, cost of manufacture
It is higher；Third, after cutting, the glass fibre in idiosome is cut off, and is not continuous glass fibre, product intensity is made seriously to drop
It is low.The prior art continues a kind of production efficiency height, at low cost, the high fiberglass frame of filter element former of intensity.
Invention content
It is an object of the invention to overcome defect existing in the prior art, a kind of production efficiency height is provided, it is at low cost, it is raw
The high fiberglass frame of filter element former of the next product strength of output.
To achieve the above object, the technical solution of the present invention is to provide a kind of fiberglass frame of filter element former, packets
Include mold and the roll shaft for being connected to both mold ends, the both mold ends are arranged organic frame, the roll shafts of the both mold ends respectively with
Gantry rotation connects；Interlaced line embedding groove is distributed in the die surface.
By using former described herein, the glass fibre item for impregnating resin insertion is fixed on line embedding groove
It is interior, etc. one-pass molding glass steel frame of filter element, high in machining efficiency, no waste mine after resin solidifications, and intensity is higher.
Preferably, the line embedding groove includes axial groove and circumferential groove, the axial groove is uniformly distributed around mold, the ring
Axially uniformly distributed along mold to slot, the axial groove and circumferential groove intersection location are intersecting trough point.It is such to can be designed so that into
Rectangular via is formed on the glass steel frame of filter element of type, improves air permeability rate.
Preferably, the mold is cylinder type mold.Such design is a kind of optimization to scheme, according to need
It wants, the mold side of may be roller, oval roller or other abnormal-shaped rollers.
Preferably, more cross winding bars are provided on two end faces of the mold, the cross winding bar
It is staggered with axial groove in annular direction.Such design, operator can be when winding glass fibre, adjacent
It between two axial grooves, is wound by being turned at cross winding bar, improves winding efficiency.
Preferably, the axial groove and circumferential groove isolate die surface for multiple convex blocks, formed in circumferential direction multiple rows of
Convex block platoon has row's convex block platoon height to be higher than other convex block platoons in multiple rows of convex block platoon, described to change for the platoon that commutates
The reversing groove parallel with axial groove is offered in the middle part of to platoon, the reversing groove intersects with circumferential groove.Such design, Ke Yi
When winding glass fibre, between two adjacent axial grooves, is positioned and commutated by reversing groove, person behaviour easy to operation
Make.
Preferably, the mold at least side is provided with air-heater, the air-heater air-out direction is directed at mold table
The air outlet in face, the air-heater is axially distributed along mold.Such design can pass through air-heater in resin solidification
Heating improves curing efficiency and solidification effect, bubble and solidification is prevented to be not thorough.
Preferably, the air-heater includes outer housing, and the ceramic heating plate in outer enclosure interior and general are set
Ceramic heating plate distributes the fan of heat blowout, and the fan air-out direction is directed at air duct, at least two are provided in the air duct
A rectification campaign bend.Such design avoids heating from having open fire, meets burning with resin, causes security risk；Meanwhile hot wind passes through
After the company of mistake bend, rectified action is played, outlet temperature is consistent, keeps resin uniform curing.
Preferably, being provided with the rotation two pairs of rollers being connected with roll shaft in the rack, the roll shaft both ends are at least
Have that one end is connect with servo motor or manual pulley dish driving or one end is connect with manual pulley dish driving, the other end and servo electricity
Machine is drivingly connected.Such design can be turned in winding and when solidification by servo motor or manual pulley dish driving roll shaft
It is dynamic；It is preferred that when winding, by manual pulley dish driving, when solidification, driven by servo motor.
The advantages of the present invention are：By using former described herein, resin will be impregnated
The insertion of glass fibre item be fixed in line embedding groove, etc. one-pass molding glass steel frame of filter element after resin solidifications, it is high in machining efficiency,
No waste mine, and intensity is higher.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is B-B sectional views in Fig. 1；
D-D sectional views in Fig. 3 Fig. 1；
Fig. 4 is that air-heater coordinates with mold and glass fibre item coordinates winding arrangement schematic diagram with cross winding bar；
Fig. 5 is structure enlargement diagram at A in Fig. 1；
Fig. 6 is structure enlargement diagram at C in Fig. 1；
The line map of glass fibre item and reversing groove cooperation commutation on the basis of Fig. 7 is Fig. 6；
Fig. 8 is that roll shaft coordinates rotational structure schematic diagram with rotation two pairs of rollers；
Fig. 9 is fiberglass frame of filter element structural schematic diagram of the present invention；
Figure 10 is fiberglass frame of filter element structural schematic diagram of the present invention (carrying connecting plate)；
Figure 11 is fiberglass frame of filter element occupation mode reference chart.
In figure：1, mold；2, roll shaft；3, rack；4, axial groove；5, circumferential groove；6, intersecting trough point；7, cross winding bar；
8, convex block；9, commutate platoon；10, reversing groove；11, air-heater；12, outer housing；13, ceramic heating plate；14, fan；15, it rectifies the incorrect style of work
Bend；16, two pairs of rollers are rotated；17, servo motor；18, manual wheel disc；19, glass fibre item；20, partition board.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is further described.Following embodiment is only
For clearly illustrating technical scheme of the present invention, and not intended to limit the protection scope of the present invention.
As Figure 1-Figure 8, a kind of fiberglass frame of filter element former, including mold 1 and it is connected to 1 both ends of mold
Organic frame 3 is arranged in roll shaft 2, the both mold ends, and the roll shaft 2 at 1 both ends of the mold is rotatablely connected with rack 3 respectively；The mould
Have 1 surface and interlaced line embedding groove is distributed with.
The line embedding groove includes axial groove 4 and circumferential groove 5, and the axial groove 4 is uniformly distributed around mold 1,5 edge of the circumferential groove
Mold 1 is axial uniformly distributed, and the axial groove 4 and 5 intersection location of circumferential groove are intersecting trough point 6.
The mold 1 is cylinder type mold 1.
Be provided with more cross winding bars 7 on two end faces of the mold 1, the cross winding bar 7 in annulus side
It is staggered upwards with axial groove 4.
The axial groove 4 and circumferential groove 5 isolate on 1 surface of mold for multiple convex blocks 8, form multiple rows of convex block 8 in circumferential direction and connect
Row has 8 platoon height of row's convex block to be higher than other 8 platoons of convex block in 8 platoon of multiple rows of convex block, for the platoon 9 that commutates, the commutation
9 middle part of platoon offers the reversing groove 10 parallel with axial groove 4, and the reversing groove 10 intersects with circumferential groove 5.
At least side of the mold 1 is provided with air-heater 11, and 11 air-out direction of the air-heater is directed at 1 surface of mold, institute
The air outlet for stating air-heater 11 is distributed along mold 1 is axial.
The air-heater 11 includes outer housing 12, and the ceramic heating plate 13 that is arranged inside outer housing 12 and will be ceramic
Fever tablet 13 distributes the fan 14 of heat blowout, and 14 air-out direction of the fan is directed at air duct, is provided at least in the air duct
Two rectification campaign bends 15.
The rotation two pairs of rollers 16 being connected with roll shaft 2,2 both ends of the roll shaft at least one end are provided in the rack 3
It is drivingly connected with servo motor 17 or manual wheel disc 18 or one end is drivingly connected with manual wheel disc 18, the other end and servo electricity
Machine 17 is drivingly connected.
Embodiment 1
A kind of fiberglass frame of filter element former, including mold 1 and the roll shaft 2 for being connected to 1 both ends of mold, the mold
It is provided at both ends with rack 3, the roll shaft 2 at 1 both ends of the mold is rotatablely connected with rack 3 respectively；Phase is distributed in 1 surface of the mold
Mutually line embedding groove staggeredly.
The line embedding groove includes axial groove 4 and circumferential groove 5, and the axial groove 4 is uniformly distributed around mold 1,5 edge of the circumferential groove
Mold 1 is axial uniformly distributed, and the axial groove 4 and 5 intersection location of circumferential groove are intersecting trough point 6.
The mold 1 is cylinder type mold 1.
Be provided with more cross winding bars 7 on two end faces of the mold 1, the cross winding bar 7 in annulus side
It is staggered upwards with axial groove 4.
The axial groove 4 and circumferential groove 5 isolate on 1 surface of mold for multiple convex blocks 8, form multiple rows of convex block 8 in circumferential direction and connect
Row has 8 platoon height of row's convex block to be higher than other 8 platoons of convex block in 8 platoon of multiple rows of convex block, for the platoon 9 that commutates, the commutation
9 middle part of platoon offers the reversing groove 10 parallel with axial groove 4, and the reversing groove 10 intersects with circumferential groove 5.
When in use, 19 one end of glass fibre item of resin and a cross winding bar 7 (such as left side will first be impregnated
A piece cross winding bar 7) it is fixed, then gradually an embedded axial groove 4 adjacent with this root cross winding bar 7 is (false for the other end
If rotation direction is to be rotated towards operator) in, right end with an adjacent cross winding bar 7 winding commutation and then by
In the embedded next axial groove 4 in rotational direction of step, so moves in circles and all wound until by all axial grooves 4；
Then glass fibre item 19 is imported by the circumferential coiling platoon that commutates in first circumferential groove 5 in left side, is turned
Moving mold 1, after rotating a ring, glass fibre item 19 changes to second ring of neighbouring first circumferential groove 5 at reversing groove 10
It to slot 5, so moves in circles, all circumferential grooves 5 is all wound；
It winds axial groove 4 and circumferential groove 5 preferably alternately, fills up groove body until according to scheduled thickness.
By spontaneous curing, or the resin that is heating and curing just forms fiberglass frame of filter element, after solidification, need along
Skeleton is isolated in the position of reversing groove 10, then demoulds.It will be cut by impregnating the glass fibre item 19 of resin again after demoulding
The position split is intertwined and connected reparation repeatedly, and fiberglass frame of filter element is just formd after curing again.The skeleton of circular tube shaped, above
It is furnished with square hole, glass fibre is continuous in each axial glass fibre reinforced plastics and circumferential glass fibre reinforced plastics, and intensity is higher, and no waste mine adds
Work is simply efficient.
Embodiment 2
To advanced optimizing for embodiment 1, at least side of the mold 1 is provided with air-heater 11, and the air-heater 11 goes out
Wind direction is directed at 1 surface of mold, and the air outlet of the air-heater 11 is distributed along mold 1 is axial.
The air-heater 11 includes outer housing 12, and the ceramic heating plate 13 that is arranged inside outer housing 12 and will be ceramic
Fever tablet 13 distributes the fan 14 of heat blowout, and 14 air-out direction of the fan is directed at air duct, is provided at least in the air duct
Two bends 15 of rectifying the incorrect style of work, are provided with the partition board 20 to form rectification campaign bend 15 in outer housing 12.
The rotation two pairs of rollers 16 being connected with roll shaft 2,2 both ends of the roll shaft at least one end are provided in the rack 3
It is drivingly connected with servo motor 17 or manual wheel disc 18 or one end is drivingly connected with manual wheel disc 18, the other end and servo electricity
Machine 17 is drivingly connected.
In winding, a preferably people rotates roll shaft 2 by manual wheel disc 18, people's coiling, because, when coiling, mould
Tool 1 needs to commutate, and there is pause in when commutation, needs to coordinate between two operative employees；And after coiling, servo motor can be passed through
17 driving 1 uniform rotation of mold, while the resin for opening 11 two pairs of rollers body surface face of air-heater is heating and curing, improve cured effect and
Efficiency.
When in use, such as Figure 11, by the fiberglass frame of filter element with upper junction plate 25 and lower connecting plate 26 as inside
For inner frame 29；Outside is socketed with the slightly larger fiberglass frame of filter element of a size, is outer framework 28, inner frame and outer framework it
Between be arranged filter cotton 30, wait for evolution gas from the port of upper junction plate 22 enter, by inner frame 29 air hole 21, filtering
Cotton 30 is filtered to be discharged with the air hole 21 on outer framework 28, reaches evolution purpose.The moisture content generated in inner frame is collected to filter
Liquid collection port 27 is discharged.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as the protection domain of invention.
Claims (8)
1. a kind of fiberglass frame of filter element former, it is characterised in that：Including mold and the roll shaft for being connected to both mold ends, institute
Both mold ends setting organic frame is stated, the roll shaft of the both mold ends is connect with gantry rotation respectively；The die surface is distributed with
Interlaced line embedding groove.
2. fiberglass frame of filter element former as described in claim 1, it is characterised in that：The line embedding groove includes axial groove
And circumferential groove, the axial groove is uniformly distributed around mold, and the circumferential groove is axially uniformly distributed along mold, the axial groove and circumferential groove phase
Friendship position is intersecting trough point.
3. fiberglass frame of filter element former as claimed in claim 2, it is characterised in that：The mold is cylinder pattern
Tool.
4. fiberglass frame of filter element former as claimed in claim 3, it is characterised in that：On two end faces of the mold
More cross winding bars are provided with, the cross winding bar is staggered in annular direction with axial groove.
5. fiberglass frame of filter element former as claimed in claim 4, it is characterised in that：The axial groove and circumferential groove will
Die surface isolates has row's convex block platoon in the multiple rows of convex block platoon of circumferential direction formation for multiple convex blocks in multiple rows of convex block platoon
Height is higher than other convex block platoons, and for the platoon that commutates, the commutation platoon middle part offers the reversing groove parallel with axial groove, institute
Reversing groove is stated with circumferential groove to intersect.
6. the fiberglass frame of filter element former as described in claim 1 or 5, it is characterised in that：The mold at least side
It is provided with air-heater, the air-heater air-out direction is directed at die surface, and the air outlet of the air-heater axially divides along mold
Cloth.
7. fiberglass frame of filter element former as claimed in claim 6, it is characterised in that：The air-heater includes shell
Body, and be arranged in the ceramic heating plate of outer enclosure interior and ceramic heating plate is distributed into the fan that heat is blown out, the fan
Air-out direction is directed at air duct, and at least two rectification campaign bends are provided in the air duct.
8. fiberglass frame of filter element former as claimed in claim 1 or 7, it is characterised in that：It is provided in the rack
The rotation two pairs of rollers being connected with roll shaft, the roll shaft both ends at least one end connect with servo motor or manual pulley dish driving
It connects or one end is connect with manual pulley dish driving, the other end is drivingly connected with servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810766093.7A CN108724759B (en) | 2018-07-12 | 2018-07-12 | Glass fiber reinforced plastic filter element framework forming equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810766093.7A CN108724759B (en) | 2018-07-12 | 2018-07-12 | Glass fiber reinforced plastic filter element framework forming equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108724759A true CN108724759A (en) | 2018-11-02 |
| CN108724759B CN108724759B (en) | 2023-08-08 |
Family
ID=63926302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810766093.7A Active CN108724759B (en) | 2018-07-12 | 2018-07-12 | Glass fiber reinforced plastic filter element framework forming equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108724759B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189224A (en) * | 2020-01-10 | 2020-05-22 | 山东大学 | Preparation system and preparation method of fiber-reinforced liner of water heater |
| CN112572021A (en) * | 2020-11-06 | 2021-03-30 | 郝城峰 | Method for manufacturing resin handicraft |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1931561A (en) * | 2006-09-29 | 2007-03-21 | 连云港中复连众复合材料集团有限公司 | Making process of molded curved GRP lattice |
| CN105269828A (en) * | 2015-11-17 | 2016-01-27 | 河北浩正非金属材料检测服务有限公司 | Manufacturing method for glass steel pipeline in zero-degree winding manner |
| CN211222123U (en) * | 2018-07-12 | 2020-08-11 | 沈小峰 | Glass steel filter core skeleton former |
-
2018
- 2018-07-12 CN CN201810766093.7A patent/CN108724759B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1931561A (en) * | 2006-09-29 | 2007-03-21 | 连云港中复连众复合材料集团有限公司 | Making process of molded curved GRP lattice |
| CN105269828A (en) * | 2015-11-17 | 2016-01-27 | 河北浩正非金属材料检测服务有限公司 | Manufacturing method for glass steel pipeline in zero-degree winding manner |
| CN211222123U (en) * | 2018-07-12 | 2020-08-11 | 沈小峰 | Glass steel filter core skeleton former |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189224A (en) * | 2020-01-10 | 2020-05-22 | 山东大学 | Preparation system and preparation method of fiber-reinforced liner of water heater |
| CN111189224B (en) * | 2020-01-10 | 2021-04-09 | 山东大学 | Preparation system and preparation method of fiber-reinforced liner of water heater |
| CN112572021A (en) * | 2020-11-06 | 2021-03-30 | 郝城峰 | Method for manufacturing resin handicraft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108724759B (en) | 2023-08-08 |
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