CN107366424A - A kind of concrete cylindrical template system - Google Patents
A kind of concrete cylindrical template system Download PDFInfo
- Publication number
- CN107366424A CN107366424A CN201710551975.7A CN201710551975A CN107366424A CN 107366424 A CN107366424 A CN 107366424A CN 201710551975 A CN201710551975 A CN 201710551975A CN 107366424 A CN107366424 A CN 107366424A
- Authority
- CN
- China
- Prior art keywords
- lining panel
- interior lining
- exterior sheathing
- annulus
- template
- 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.)
- Pending
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- 239000000463 material Substances 0.000 claims abstract description 11
- 229920003023 plastic Polymers 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 10
- 239000002023 wood Substances 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 8
- 230000007306 turnover Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 244000050510 Cunninghamia lanceolata Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
- E04G13/021—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor for circular columns
Abstract
A kind of concrete cylindrical template system includes liner round frame, interior lining panel, exterior sheathing, outer hoop；The liner round frame includes two semicircle annulus being mutually butted, and the top at the both ends of the semicircle annulus is respectively equipped with the connecting plate protruded on the outside of semicircle annulus, bolt hole is offered on the connecting plate；The interior lining panel is the thin plate for the polyvinyl chloride material that can arbitrarily bend being adapted with concrete cylindrical girth size；The exterior sheathing is the plastic plate being adapted with interior lining panel girth size, and its section inner side is shiny surface, outside is provided with vertical rib；The outer hoop is that one end is toothed fastening plastic tape with holes, that the other end is wedge angle；The liner round frame is placed on the interior column-form upper end of interior lining panel formation, and exterior sheathing envelopes interior column-form, and outer hoop fixes interior lining panel and exterior sheathing；The concrete cylindrical template system improves efficiency of construction, increase uses the number of turnover, reduces construction cost.
Description
Technical field
The present invention relates to building form, and in particular to a kind of concrete cylindrical template system.
Background technology
In Construction of Civil Engineering, for the concrete component of cylinder, its mold method generally use set shaped steel formwork
Or using the splicing of strip Chinese fir board with reference to stirrup set, bool set, either cost is high or splicing trouble efficiency is low, necessarily
Efficiency of construction and quality are have impact in degree.
The content of the invention
It is an object of the invention to provide a kind of brand-new concrete cylindrical template system, improves efficiency of construction, increase uses
The number of turnover, reduce construction cost.By changing mould material and new assembling method, the mould of cylindrical concrete component is completed
Plate.The template system inner wall smooth of the present invention is closely knit, ensures the pouring quality on concrete members surface, and outer hoop fastening effect is good,
Ensure the mould that do not rise, both improved speed of application or controlled cost, to solve above mentioned problem existing for prior art.
The technical scheme to solve the above problems is：A kind of concrete cylindrical template system, it is characterised in that：The concrete circular
Column template system includes liner round frame, interior lining panel, exterior sheathing and outer hoop；
The liner round frame includes two semicircle annulus being mutually butted；
The interior lining panel is the thin plate for the polyvinyl chloride material that can arbitrarily bend being adapted with concrete cylindrical girth size；
The exterior sheathing is the plastic plate being adapted with interior lining panel girth size, is provided with the inside of its section for shiny surface, outside perpendicular
To rib；
The outer hoop is that one end is toothed fastening plastic tape with holes, that the other end is wedge angle；
Under use state：In the upper end of concrete cylindrical template, two semicircle annulus are enclosed on the outside of cylinder steel reinforcement cage and fixed
It is butted into a complete annulus；The interior lining panel is close in complete circle, and bending volume is barricaded as an inner cylinder template, should
The place of closing up of inner cylinder template is using the side fissure of displacement overlap joint of interior lining panel two；The inner cylinder template is coated on cylinder steel reinforcement cage
Outside；The shiny surface of the exterior sheathing is close on interior lining panel, is bent to form an Outer cylindrical template, the conjunction of the Outer cylindrical template
Hold together place using the both ends of the surface of exterior sheathing with respect to snapping；The Outer cylindrical template is coated on the interior cylinder that liner plate benging volume is barricaded as
Outside shape template；The outer hoop interval is laid in the Outer cylindrical template that exterior sheathing is bent to form, and is closed by adjusting outer hoop head and the tail
The size for holding together to be formed an annulus cuff fastens exterior sheathing and interior lining panel.
Its further technical scheme is：The top at the both ends of the semicircle annulus is respectively equipped with outside the semicircle annulus of protrusion
The connecting plate of side, bolt hole is offered on the connecting plate, the bolt hole screwed in by bolt on connecting plate makes two semicircles
Annulus fastening is butted into a complete annulus.
Its further technical scheme or：The top at the both ends of the semicircle annulus is respectively equipped with the semicircle annulus of protrusion
The connecting plate in outside, opens up on the connecting plate jagged, and filling in breach by dumbbell shaped wood a tree, used in making timber for boats makes two semicircle annulus tight
Admittedly it is butted into a complete annulus.
Its further technical scheme is：The end face of the exterior sheathing is arranged to positive stopping table, and other end is arranged to
The anti-stopping table being engaged with positive seam.
Its further technical scheme or：The liner round frame is made up of aluminum alloy material.
Its further technical scheme or：The exterior sheathing is formed in one with rib.
Due to being had the characteristics that using a kind of concrete cylindrical template system of above-mentioned technical proposal, the present invention and beneficial
Effect：
1st, the structure of the template system of the present invention is simple, and the inner cylinder template to be formed and external mold are taken using the bending volume of interior lining panel 2
Two layers of template of the Outer cylindrical template that plate 3 is bent to form, the place of closing up of inner cylinder template are overlapped using the fissure of displacement, Outer cylindrical
The place of closing up of template is coated on inner cylinder using positive stopping table 31 snapping relative with the anti-faulting of slab ends of stopping table 32, Outer cylindrical template
Outside template, two layers of template finally is fixed with outer hoop 4, really solves the problems, such as that column-form does not rise mould.At the place of closing up using wrong
Seam overlap joint ensures when casting concrete not spillage.In addition, exterior sheathing 3 is coated on outside interior lining panel 2, in exterior sheathing 3
Vertical rib 33 is provided with lateral surface, serves the vertical integral rigidity for reinforcing interior lining panel 2, the prevention concrete mould that rises causes
Molding component fails；Exterior sheathing and rib 33 are integrally formed, improve the non-deformability of whole template.And interior lining panel 2
Using the thin plate for the polyvinyl chloride material that can arbitrarily bend, surface is smooth, and interior lining panel 2 directly contacts with periphery, ensure that
After concreting shaping, outward appearance is round and smooth.Further, two semicircle annulus 11 that interior lining panel 2 is close to the lower section of connecting plate 12 are right
In the complete circle ring body being connected into, bending volume is barricaded as an inner cylinder template, ensures that inner cylinder template upper end is fixed into circle,
The bending of interior lining panel 2 when being rolled into inner cylinder template will not indent, form positive round, can also be pulled down in the lump in form removal, circulation makes
With.
2nd, the liner round frame 1 of the template system of the present invention and the strong adaptability of outer hoop 4 can be used for the cylindrical structure of various diameters
Part, blanking and splicing are convenient and swift, and material cost is relatively low.
（1）Liner round frame 1 uses aluminum alloy material, is made in advance according to architectural engineering typical diameters, for example, 300mm
350 mm 400mm 500mm 550mm 600mm etc., be applicable to the cylindrical members of various diameters.
（2）The outer hoop 4 is that one end is the toothed fastening plastic tape that can arbitrarily bend with holes, that the other end is wedge angle；
Length is designed according to common cylinder maximum perimeter, and some outer hoops 4 are laterally snapped together and can extended, in use, by one end
Insert the flat groove of the other end（Hole）, tension.Outer hoop is directly cut to be disposable, during form removal, simplifies operation journey
Sequence, reduce labor intensity.
3rd, by each part finished product of template system, systematization, used after conveniently cutting, improve efficiency of construction, strengthen mould
Plate integral rigidity, improve non-deformability.
In summary, the application of template system of the invention in engineering in practice is very extensive, especially non-rectangular cross-section
Component, this product possess cost is cheap, take tear open conveniently, safeguard advantage that is simple, recycling, really solve column-form not
Rise mould the problem of, possess certain promotional value.
Below, a kind of technical characteristic of concrete cylindrical template system of the present invention is made into one in conjunction with the accompanying drawings and embodiments
The explanation of step.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2-1 is the semicircle circular ring structure schematic diagram of the present invention；
Fig. 2-2 is the liner round frame scheme of installation one of the present invention；
Fig. 2-3 is the liner round frame scheme of installation two of the present invention；
Fig. 3-1 is the interior lining panel bending schematic diagram of the present invention；
Fig. 3-2 is the interior lining panel expanded schematic diagram of the present invention；
Fig. 4-1 is the exterior sheathing bending schematic diagram of the present invention；
Fig. 4-2 is the exterior sheathing expanded schematic diagram of the present invention；
Fig. 5-1 is cuff structure schematic diagram outside the present invention；
Fig. 5-2 is the outer hoop application method schematic diagram of the present invention.
Fig. 6 is scheme of installation of the present invention；
In figure：
1- liners round frame, 11- semicircles annulus, 12- connecting plates, 13- dumbbell shaped wood a tree, used in making timber for boats；2- interior lining panels, 3- exterior sheathings, 31- are just
The anti-stopping table of stopping table, 32-, 33- ribs；4- outer hoops, the flat grooves of 41-；5- steel reinforcement cages, 6- concrete cylindricals.
Embodiment
A kind of concrete cylindrical template system, as shown in figure 1, the concrete cylindrical template system includes liner round frame 1, interior
Liner plate 2, exterior sheathing 3 and outer hoop 4；
The liner round frame 1 includes two semicircle annulus 11 being mutually butted, the top at the both ends of the semicircle annulus 11
It is respectively equipped with the connecting plate 12 for protruding the semicircle outside of annulus 11（Referring to Fig. 2-1）, bolt hole is offered on connecting plate 12；It is described
The bottom of semicircle annulus 11, which is used to coat to interior lining panel 2, to be used, and helps the upper end of interior lining panel 2 to be fixed into circle.Preferably, in described
Lining round frame 1 is made up of aluminum alloy material, for checking whether the column-form of shaping is round and smooth, helps the upper end of interior lining panel 2 to be fixed into
It is circular.
The interior lining panel 2 is the polyvinyl chloride material that can arbitrarily bend being adapted with concrete cylindrical girth size
Thin plate；The interior lining panel 2 is used to directly contact with periphery, and after ensureing concreting shaping, outward appearance is round and smooth（Referring to Fig. 3-1,
Fig. 3-2）.
The exterior sheathing 3 is the plastic plate being adapted with the girth size of interior lining panel 2, is shiny surface, outside on the inside of its section
Provided with vertical rib 33（Outside is set to appear as corrugated）；Positive stopping table 31 is made in the end face of the exterior sheathing 3, another
The anti-stopping table 32 being engaged with positive seam is made in end face.The exterior sheathing 3 is used for the vertical integral rigidity for reinforcing interior lining panel, prevention
Component deformation is molded as due to rising（Referring to Fig. 4-1, Fig. 4-2）.
The outer hoop 4 is that one end is toothed fastening plastic tape with holes, that the other end is wedge angle；Some outer hoops 4 are laterally
Snapping together to extend.The outer hoop 4 is used to fasten interior lining panel 2 and exterior sheathing 3, disposable, directly cuts during form removal.
（Referring to Fig. 5-1, Fig. 5-2）
Under use state（Referring to Fig. 6）：In the upper end of concrete cylindrical template, two semicircle annulus 11 are enclosed on cylinder steel reinforcement cage
Outside, the bolt hole screwed in by bolt on connecting plate 12 make two semicircle fastenings of annulus 11 be butted into a complete annulus
（Referring to Fig. 2-2）；The interior lining panel 2 is close to the complete circle below connecting plate 12 being butted into by two semicircle annulus 11
In ring body, bending volume is barricaded as an inner cylinder template, and the place of closing up of the inner cylinder template uses 2 liang of side fissure of displacement of interior lining panel
Overlap joint；The inner cylinder template is coated on outside cylinder steel reinforcement cage；The shiny surface of the exterior sheathing 3 is close on interior lining panel 2, bent
An Outer cylindrical template is formed, the place of closing up of the Outer cylindrical template uses the positive stopping table 31 of exterior sheathing 3 and anti-stopping table
32 faulting of slab ends are with respect to snapping；The Outer cylindrical template is coated on outside the inner cylinder template that the bending volume of interior lining panel 2 is barricaded as；It is described outer
The interval of hoop 4 is laid in the Outer cylindrical template that exterior sheathing 3 is bent to form, and closes up to form a circle by adjusting the head and the tail of outer hoop 4
The size of hoop set fastens exterior sheathing 3 and interior lining panel 2.
One kind conversion as the present embodiment：The liner round frame 1 includes two semicircle annulus 11 being mutually butted, institute
The top for stating the both ends of semicircle annulus 11 is respectively equipped with the connecting plate 12 for protruding the semicircle outside of annulus 11, the connecting plate 12
On open up jagged, filling in breach by dumbbell shaped wood a tree, used in making timber for boats 13 makes two semicircle annulus 11 fastenings be butted into a complete circle
Ring（Referring to Fig. 2-3）.
The exterior sheathing 3 is formed in one with rib 33.
The product that interior lining panel 2, exterior sheathing 3 and outer hoop 4 in the present embodiment can all be bought in the market, the He of interior lining panel 2
Exterior sheathing 3 is packed for coiled material, and outer hoop 4 is packed for wall scroll.Thick 2-6mm sheet material may be selected as interior lining panel 2 according to component size,
Sheet material finished size is general 2440x1220mm, and material is readily bent, cut, and repeat usage is up to more than 80%.Outer hoop 4
Width can use 50mm.
The installation method of the concrete cylindrical template system of the present invention：
Step A, installation site is determined：According to design drawing, along cylinder steel reinforcement cage, rule position in cylinder root in advance.
Step B, the order of each part is installed：Liner round frame → interior lining panel → exterior sheathing → outer hoop；
Step B1, liner round frame 1 is installed：In template upper end, two semicircle annulus 11 are enclosed on the outside of cylinder steel reinforcement cage 5, root
According to the different structure of semicircle annulus 11, using bolt or dumbbell shaped wood a tree, used in making timber for boats by two semicircle annulus 11 surround one it is whole
Circle；
Step B2, interior lining panel 2 is installed：Cut according to corresponding cylinder girth and use interior lining panel 2, be close to the lower section of connecting plate 12
In the complete circle ring body that two semicircle annulus 11 are butted into, it is coated on outside cylinder steel reinforcement cage；
Step B3, exterior sheathing 3 is installed：Cut according to corresponding cylinder girth and use exterior sheathing 3, exterior sheathing is wrapped in liner
Outside plate 2；
Step B4, outer hoop 4 is installed：The interval of outer hoop 4 is laid in outside exterior sheathing, and one end of every outer hoop 4 is inserted into the flat of the other end
Groove, tension, using band tooth principle, the more draw the more tight, it is irreversible to return release.
Step C, its shaping is made toward casting concrete in template.
Step D, form removal：It will disposably cut outer band, and remove exterior sheathing, interior lining panel and liner round frame 1, complete template
Construction technology.
Claims (6)
- A kind of 1. concrete cylindrical template system, it is characterised in that：The concrete cylindrical template system includes liner round frame（1）、 Interior lining panel（2）, exterior sheathing（3）And outer hoop（4）；The liner round frame（1）Including two semicircle annulus being mutually butted（11）；The interior lining panel（2）It is the thin of the polyvinyl chloride material that can arbitrarily bend adaptable with concrete cylindrical girth size Plate；The exterior sheathing（3）It is and interior lining panel（2）The adaptable plastic plate of girth size, its section inner side is shiny surface, outside Provided with vertical rib（33）；The outer hoop（4）It is toothed fastening plastic tape with holes, that the other end is wedge angle for one end；Under use state：In the upper end of concrete cylindrical template, two semicircle annulus（11）It is enclosed on the outside of cylinder steel reinforcement cage simultaneously Fixation is butted into a complete annulus；The interior lining panel（2）It is close in complete circle, bending volume is barricaded as an inner cylinder Template, the place of closing up of the inner cylinder template use interior lining panel（2）Two side fissure of displacement overlap joints；The inner cylinder template is coated on Outside cylinder steel reinforcement cage；The exterior sheathing（3）Shiny surface be close to interior lining panel（2）Above, an Outer cylindrical template is bent to form, should The place of closing up of Outer cylindrical template uses exterior sheathing（3）Both ends of the surface with respect to snapping；The Outer cylindrical template is coated on liner Plate（2）Outside the inner cylinder template that bending volume is barricaded as；The outer hoop（4）Interval is laid in exterior sheathing（3）What is be bent to form is cylindrical In cylindricality template, by adjusting outer hoop（4）Head and the tail close up to form the size of an annulus cuff by exterior sheathing（3）And interior lining panel （2）Fastening.
- A kind of 2. concrete cylindrical template system according to claim 1, it is characterised in that：The semicircle annulus（11） The top at both ends be respectively equipped with the semicircle annulus of protrusion（11）The connecting plate in outside（12）, the connecting plate（12）On offer Bolt hole, connecting plate is screwed in by bolt（12）On bolt hole make two semicircle annulus（11）Fastening is butted into one completely Annulus.
- A kind of 3. concrete cylindrical template system according to claim 1, it is characterised in that：The semicircle annulus（11） The top at both ends be respectively equipped with the semicircle annulus of protrusion（11）The connecting plate in outside（12）, the connecting plate（12）On offer Breach, filling in breach by dumbbell shaped wood a tree, used in making timber for boats makes two semicircle annulus（11）Fastening is butted into a complete annulus.
- 4. according to a kind of any described concrete cylindrical template systems of claim 1-3, it is characterised in that：The exterior sheathing （3）End face be arranged to positive stopping table（31）, other end is arranged to the anti-stopping table being engaged with positive seam（32）.
- A kind of 5. concrete cylindrical template system according to claim 1, it is characterised in that：The liner round frame（1）By Aluminum alloy material is made.
- A kind of 6. concrete cylindrical template system according to claim 1, it is characterised in that：The exterior sheathing（3）With rib Bar（33）It is formed in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710551975.7A CN107366424A (en) | 2017-07-07 | 2017-07-07 | A kind of concrete cylindrical template system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710551975.7A CN107366424A (en) | 2017-07-07 | 2017-07-07 | A kind of concrete cylindrical template system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107366424A true CN107366424A (en) | 2017-11-21 |
Family
ID=60305220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710551975.7A Pending CN107366424A (en) | 2017-07-07 | 2017-07-07 | A kind of concrete cylindrical template system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107366424A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700577A (en) * | 2019-10-21 | 2020-01-17 | 徐州鑫固钢模有限公司 | Device with built-in plate steel template |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03147974A (en) * | 1989-11-02 | 1991-06-24 | Takenaka Komuten Co Ltd | Simple formwork and construction therewith |
| CN1137303A (en) * | 1993-11-02 | 1996-12-04 | 弹性模板有限公司 | Flexible formwork assembly |
| CN101387156A (en) * | 2008-10-06 | 2009-03-18 | 阮中亮 | Cylindrical plastic formwork for building |
| CN201932494U (en) * | 2010-11-29 | 2011-08-17 | 河南省电力公司安阳供电公司 | Detachable plastic band |
| CN205063327U (en) * | 2015-08-25 | 2016-03-02 | 李东 | PVC building tectorial membrane board |
| CN205713095U (en) * | 2016-05-09 | 2016-11-23 | 中国建筑一局(集团)有限公司 | A kind of cylinder ring beam circle template hoop construction |
| CN206917263U (en) * | 2017-07-07 | 2018-01-23 | 柳州铁道职业技术学院 | A kind of concrete cylindrical template system |
-
2017
- 2017-07-07 CN CN201710551975.7A patent/CN107366424A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03147974A (en) * | 1989-11-02 | 1991-06-24 | Takenaka Komuten Co Ltd | Simple formwork and construction therewith |
| CN1137303A (en) * | 1993-11-02 | 1996-12-04 | 弹性模板有限公司 | Flexible formwork assembly |
| CN101387156A (en) * | 2008-10-06 | 2009-03-18 | 阮中亮 | Cylindrical plastic formwork for building |
| CN201932494U (en) * | 2010-11-29 | 2011-08-17 | 河南省电力公司安阳供电公司 | Detachable plastic band |
| CN205063327U (en) * | 2015-08-25 | 2016-03-02 | 李东 | PVC building tectorial membrane board |
| CN205713095U (en) * | 2016-05-09 | 2016-11-23 | 中国建筑一局(集团)有限公司 | A kind of cylinder ring beam circle template hoop construction |
| CN206917263U (en) * | 2017-07-07 | 2018-01-23 | 柳州铁道职业技术学院 | A kind of concrete cylindrical template system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700577A (en) * | 2019-10-21 | 2020-01-17 | 徐州鑫固钢模有限公司 | Device with built-in plate steel template |
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Application publication date: 20171121 |