CN211850345U - Composite wall structure formed by trapezoidal plates in alternative arrangement mode - Google Patents
Composite wall structure formed by trapezoidal plates in alternative arrangement mode Download PDFInfo
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- CN211850345U CN211850345U CN201922414264.2U CN201922414264U CN211850345U CN 211850345 U CN211850345 U CN 211850345U CN 201922414264 U CN201922414264 U CN 201922414264U CN 211850345 U CN211850345 U CN 211850345U
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- plate
- trapezoidal
- polyurethane sandwich
- sandwich composite
- trapezoidal plate
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- 239000002131 composite material Substances 0.000 title claims abstract description 73
- 229920002635 polyurethane Polymers 0.000 claims abstract description 68
- 239000004814 polyurethane Substances 0.000 claims abstract description 68
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 29
- 239000010440 gypsum Substances 0.000 claims abstract description 29
- 239000003365 glass fiber Substances 0.000 claims abstract description 18
- 229920000742 Cotton Polymers 0.000 claims abstract description 13
- 210000001503 joint Anatomy 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 6
- 210000002268 wool Anatomy 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 5
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 4
- 235000011613 Pinus brutia Nutrition 0.000 description 4
- 241000018646 Pinus brutia Species 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 235000005205 Pinus Nutrition 0.000 description 1
- 241000218602 Pinus <genus> Species 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a composite wall structure that trapezoidal plate alternate arrangement mode constitutes, including the gypsum board, glass fiber cotton, polyurethane sandwich composite board, trapezoidal plate and cold-formed thin-walled steel stand, cold-formed thin-walled steel stand is connected with gypsum board and polyurethane sandwich composite board respectively, glass fiber cotton is filled between gypsum board and polyurethane sandwich composite board, trapezoidal plate is arranged with positive trapezoidal plate, the order of falling trapezoidal plate and placing in turn, every positive trapezoidal plate or fall through the screw connection between trapezoidal plate and the polyurethane sandwich composite board, realize the combination through the mode of lock between two adjacent positive trapezoidal plates and the trapezoidal plate that falls, just the screw is located the lock department of two adjacent positive trapezoidal plates and the trapezoidal plate that falls, for hidden structure. The utility model discloses a mode that positive trapezoidal plate, the trapezoidal plate of falling arranged in turn for the screw is not arranged on a vertical line or horizontal line, but staggers each other, is favorable to trapezoidal plate and polyurethane sandwich composite sheet's being connected more like this.
Description
Technical Field
The utility model relates to a wall structure especially relates to a composite wall structure that trapezoidal board alternate arrangement mode constitutes.
Background
The traditional cold-bending thin-wall steel outer wall system consists of a gypsum board 11, glass fiber cotton 12, an European pine board 13, damp-proof paper 14, an XPS heat-insulating board 15, a cold-bending thin-wall steel upright post 16, a Z-shaped folding piece 17 and an outer decorative layer 18, referring to figure 1, the gypsum board 11, the glass fiber cotton 12, the European pine board 13, the damp-proof paper 14, the XPS heat-insulating board 15, the damp-proof paper 14 and the outer decorative layer 18 are sequentially and sequentially laid, the cold-bending thin-wall steel upright post 16 is embedded in the glass fiber cotton 12, one side of the cold-bending thin-wall steel upright post 16 is connected with the gypsum board 11 through screws, the other side of the cold-bending thin-wall steel upright post is connected with the European pine board 13 through screws, the Z-shaped folding piece 17 is embedded between the European pine board 13 and the decorative layer 18 and penetrates through the damp-proof paper 14, the XPS heat-insulating board 15 and the damp-proof paper 14 laid on the outer decorative, in this structure, XPS heated board 15 academic or vocational name is extrusion molding polystyrene foamed plastic heated board for the heat insulation, has the obturator honeycomb, and the XPS heated board has extremely low hydroscopicity (hardly absorbs water), low thermal conductivity coefficient, high crushing resistance, ageing resistance (normal use does not have ageing decomposition phenomenon almost), all sets up dampproofing paper 14 in XPS heated board 15's both sides, and outer decorative layer 18 has been the dope layer of coating on the surface of fiber cement board.
The outer wall system of the technical scheme directly fixes the Okinson plate on the cold-formed thin-wall section steel upright post by using screws, and the Okinson plate has the defect of poor mechanical property; the pinus boards are not tightly lapped with other board layers, such as gypsum boards and outer decorative layers, and have poor waterproof performance. And the connection work of the heat-insulating plate and the cold-formed thin-wall steel upright column is increased, the construction is complex, and the quality is not easy to guarantee.
Chinese patent CN103306401B discloses an exterior wall system based on polyurethane sandwich steel plate, which comprises a gypsum board, steel columns, glass fiber cotton, a polyurethane sandwich steel plate, and an exterior decoration layer, wherein the gypsum board and the steel columns are respectively connected with the polyurethane sandwich steel plate into a whole, the glass fiber cotton is arranged between the gypsum board and the polyurethane sandwich steel plate, and the exterior decoration layer is arranged on the outer surface of the polyurethane sandwich steel plate. The outer decorative layer is directly laid outside the polyurethane sandwich steel plate in a bonding or screw connection mode, if the bonding mode is adopted, construction is complex, the outer decorative layer is easy to fall off, if the outer decorative layer is directly connected outside the polyurethane sandwich steel plate through screws, the screws are easily corroded by rainwater or wind and sunlight, and after the use time is long, the outer decorative layer is easy to fall off. In addition, the outer decorative layer is directly laid on the outer surface of the polyurethane sandwich steel plate in a bonding or screw connection mode, and the outer decorative layer and the polyurethane sandwich steel plate are arranged in a close contact mode in the structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a composite wall structure that trapezoidal plate alternate arrangement mode constitutes to improve traditional outer wall system waterproof performance poor, the not convenient problem of installation.
The purpose of the utility model can be realized through the following technical scheme:
a composite wall surface structure formed by trapezoidal plates in an alternative arrangement mode comprises gypsum boards, glass fiber cotton, polyurethane sandwich composite boards, trapezoidal plates and cold-formed thin-walled steel columns, wherein the gypsum boards and the polyurethane sandwich composite boards are arranged in parallel at intervals, the cold-formed thin-walled steel columns are arranged between the gypsum boards and the polyurethane sandwich composite boards, the cold-formed thin-walled steel columns are respectively connected with the gypsum boards and the polyurethane sandwich composite boards, the glass fiber cotton is filled between the gypsum boards and the polyurethane sandwich composite boards, the trapezoidal plates are provided with a plurality of blocks and are positioned outside the polyurethane sandwich composite boards, the trapezoidal plates comprise regular trapezoidal plates and inverted trapezoidal plates, the regular trapezoidal plates are of a structure which is narrow at the top and wide at the bottom, the inverted trapezoidal plates are of a structure which is wide at the top and narrow at the bottom, the trapezoidal plates are arranged in an alternative arrangement order in the left and right directions, and the lock between adjacent positive trapezoidal plate and the trapezoidal plate that falls constitutes wholly, through the screw connection between every positive trapezoidal plate or the trapezoidal plate that falls all and the polyurethane sandwich composite sheet, realizes the combination through the mode of lock between two adjacent positive trapezoidal plates and the trapezoidal plate that falls, just the screw is located the lock department of two adjacent positive trapezoidal plates and the trapezoidal plate that falls, is hidden structure.
In one embodiment of the present invention, the polyurethane sandwich composite plate is composed of two steel plates on both sides and polyurethane filled between the two steel plates.
The utility model discloses an in an embodiment, polyurethane sandwich composite sheet sets up a plurality of pieces, and every polyurethane sandwich composite sheet's tip all is provided with the butt joint tongue-and-groove, and two adjacent polyurethane sandwich composite sheets from top to bottom form through the concatenation of tongue-and-groove structure.
In one embodiment of the present invention, the regular trapezoidal plate and the inverted trapezoidal plate are isosceles trapezoids, and the regular trapezoidal plate and the inverted trapezoidal plate have the same size, the regular trapezoidal plate comprises a plate body, a left butt plate located on the left side of the plate body, and a right butt plate located on the right side of the plate body, the left butt plate is an L-shaped plate, one plate of the L-shaped plate is perpendicular to the plate body, the other plate is parallel to the plate body, the right butt plate is an L-shaped plate, one plate of the L-shaped plate is perpendicular to the plate body, the other plate is parallel to the plate body, the left butt plate is further provided with a screw mounting block for mounting screws, the inverted trapezoidal plate comprises a plate body, a left butt plate located on the left side of the plate body, and a right butt plate located on the right side of the plate body, the left butt plate is an L-shaped plate, one plate of the L-shaped, a panel perpendicular to plate body of L template, another panel is on a parallel with the plate body, still be equipped with the screw installation piece that is used for installing the screw on the left side butt joint plate.
In an embodiment of the present invention, the screw mounting block of the left butt plate of the regular trapezoidal plate is connected to the polyurethane sandwich composite plate through a screw, and the right butt plate of the inverted trapezoidal plate covers the left butt plate of the regular trapezoidal plate, so as to realize the concealed mounting of the screw; the screw installation block of the left butt joint plate of the inverted trapezoidal plate is connected to the polyurethane sandwich composite plate through a screw, and the right butt joint plate of the right trapezoidal plate covers the left butt joint plate of the inverted trapezoidal plate, so that concealed installation of the screw is realized.
In an embodiment of the present invention, the inner side of the plate body is attached to the polyurethane sandwich composite plate, and the left butt plate and the right butt plate are both located outside the plate body.
In one embodiment of the present invention, the gypsum board has a thickness of 10 to 15 mm.
In one embodiment of the present invention, the glass fiber wool filling thickness is 80-120 mm.
In one embodiment of the present invention, the thickness of the polyurethane sandwich composite sheet is 40 to 60 mm.
In an embodiment of the present invention, the thickness of the gypsum board is 12mm, the filling thickness of the glass fiber wool is 100mm, and the thickness of the polyurethane sandwich composite board is 50 mm.
Compared with the prior art, the utility model has the advantages of it is following and beneficial effect:
1. the utility model discloses a wall structure is as atress and insulation construction with polyurethane sandwich composite sheet, based on polyurethane sandwich composite sheet's structure steadiness and thermal insulation performance, consequently, this wall structure has atress and heat retaining dual function concurrently, and atress performance is good, and the heat preservation is heat-proof quality is better.
2. Trapezoidal plate fixes on polyurethane sandwich composite sheet with hidden screwed connection's mode, and the mode that adopts the lock to be connected between positive trapezoidal plate and the trapezoidal plate that falls realizes the combination, and the hidden screwed connection of trapezoidal plate and the mode that the lock is connected can effectively prevent the rainwater seepage to adopt positive trapezoidal plate, the mode that falls trapezoidal plate and arrange in turn, make the screw not arrange on a vertical line or horizontal line, but stagger each other, be favorable to being connected of trapezoidal plate and polyurethane sandwich composite sheet more like this.
3. The utility model discloses a wall structure installation is swift convenient, and construction cycle is short, and comprehensive benefit is good, has good price/performance ratio advantage.
Drawings
FIG. 1 is a schematic structural view of a conventional cold-formed thin-walled steel outer wall system in the background art;
FIG. 2 is a schematic structural view of a composite wall structure formed by the alternate arrangement of the trapezoidal plates in example 1;
fig. 3 is a schematic view of the connection structure of the trapezoidal plates in embodiment 1.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Example 1
Referring to fig. 2 and 3, a composite wall structure composed of trapezoidal plates in an alternative arrangement mode comprises gypsum boards 21, glass fiber cotton 22, polyurethane sandwich composite boards 23, trapezoidal plates 24 and cold-formed thin-walled steel columns 25, the gypsum boards 21 and the polyurethane sandwich composite boards 23 are arranged in parallel at intervals, the cold-formed thin-walled steel columns 25 are arranged between the gypsum boards 21 and the polyurethane sandwich composite boards 23, the cold-formed thin-walled steel columns 25 are respectively connected with the gypsum boards 21 and the polyurethane sandwich composite boards 23, the glass fiber cotton 22 is filled between the gypsum boards 21 and the polyurethane sandwich composite boards 23, the trapezoidal plates 24 are provided with a plurality of blocks and located outside the polyurethane sandwich composite boards 23, the trapezoidal plates 24 comprise regular trapezoidal plates and inverted trapezoidal plates, the regular trapezoidal plates are in a structure with a narrow upper part and a narrow lower part, the inverted trapezoidal plates are in a structure with a wide upper part and a narrow lower part, in the direction of controlling, trapezoidal plate 24 arranges with the order that positive trapezoidal plate, the trapezoidal plate that falls are placed in turn, and the lock is constituteed wholly between adjacent positive trapezoidal plate and the trapezoidal plate that falls, every positive trapezoidal plate or fall the trapezoidal plate all with polyurethane sandwich composite sheet 23 between be connected through screw 26, realize the combination through the mode of lock between two adjacent positive trapezoidal plates and the trapezoidal plate that falls, just screw 26 is located the lock department of two adjacent positive trapezoidal plates and the trapezoidal plate that falls, for hidden structure.
In this embodiment, the polyurethane sandwich composite plate 23 is composed of two steel plates on two sides and polyurethane filled between the two steel plates.
In this embodiment, the polyurethane sandwich composite board 23 is provided with a plurality of blocks, the end of each polyurethane sandwich composite board 23 is provided with a butt-joint tongue-and-groove, and two adjacent polyurethane sandwich composite boards 23 are spliced by a tongue-and-groove structure.
In this embodiment, the regular trapezoidal plate and the inverted trapezoidal plate are isosceles trapezoids, and the regular trapezoidal plate and the inverted trapezoidal plate have the same size, the regular trapezoidal plate includes a plate body 241, a left butt plate 242 located on the left side of the plate body 241, and a right butt plate 243 located on the right side of the plate body 241, the left butt plate 242 is an L-shaped plate, one panel of the L-shaped plate is perpendicular to the plate body 241, the other panel is parallel to the plate body 241, the right butt plate 243 is an L-shaped plate, one panel of the L-shaped plate is perpendicular to the plate body 241, the other panel is parallel to the plate body 241, the left butt plate 242 is further provided with a screw mounting block for mounting a screw 26, the inverted trapezoidal plate includes a plate body 241, a left butt plate 242 located on the left side of the plate body 241, and a right butt plate 243 located on the right side of the plate body 241, the left butt plate 242 is an L-, the right butt joint plate 243 is an L-shaped plate, one plate of the L-shaped plate is perpendicular to the plate body 241, the other plate is parallel to the plate body 241, and the left butt joint plate 242 is further provided with a screw mounting block 244 for mounting the screw 26.
In this embodiment, the screw mounting block 244 of the left butt plate 242 of the regular trapezoidal plate is connected to the polyurethane sandwich composite plate 23 by a screw, and the right butt plate 243 of the inverted trapezoidal plate covers the left butt plate 242 of the regular trapezoidal plate, so as to implement concealed mounting of the screw; the screw mounting block 244 of the left butt-joint plate 242 of the inverted trapezoidal plate is connected to the polyurethane sandwich composite plate 23 through a screw, and the right butt-joint plate 243 of the regular trapezoidal plate covers the left butt-joint plate 242 of the inverted trapezoidal plate, so that the concealed mounting of the screw is realized.
In this embodiment, the inner side of the plate body 241 is attached to the polyurethane sandwich composite plate 23, and the left butt plate 242 and the right butt plate 243 are located at the outer side of the plate body 241.
In this embodiment, the thickness of the gypsum board 21 is 12mm, the filling thickness of the glass fiber wool 22 is 100mm, and the thickness of the polyurethane sandwich composite board 23 is 50 mm.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (10)
1. The utility model provides a compound wall structure that trapezoidal plate alternate arrangement mode constitutes, its characterized in that, includes gypsum board (21), glass fiber cotton (22), polyurethane sandwich composite board (23), trapezoidal plate (24) and cold-formed thin-walled steel stand (25), gypsum board (21) and polyurethane sandwich composite board (23) interval parallel arrangement, cold-formed thin-walled steel stand (25) set up between gypsum board (21) and polyurethane sandwich composite board (23), just cold-formed thin-walled steel stand (25) are connected with gypsum board (21) and polyurethane sandwich composite board (23) respectively, glass fiber cotton (22) are filled between gypsum board (21) and polyurethane sandwich composite board (23), trapezoidal plate (24) are equipped with a plurality of pieces, are located the outside of polyurethane sandwich composite board (23), trapezoidal plate (24) include positive trapezoidal plate and inverted trapezoidal plate, regular trapezoidal plate is under the narrow structure, fall trapezoidal plate is under the narrow structure of width, on left right direction, trapezoidal plate (24) are arranged with regular trapezoidal plate, the order that falls trapezoidal plate and place in turn, and adjacent regular trapezoidal plate and fall between the trapezoidal plate lock and constitute wholly, and every regular trapezoidal plate or fall trapezoidal plate all with polyurethane sandwich composite sheet (23) between be connected through screw (26), realize the combination through the mode of lock between two adjacent regular trapezoidal plates and the falling trapezoidal plate, just screw (26) are located the lock department of two adjacent regular trapezoidal plates and the trapezoidal plate that falls, are hidden structure.
2. A composite wall structure formed by an alternate arrangement of trapezoidal plates as claimed in claim 1, wherein said polyurethane sandwich composite plate (23) is composed of steel plates on both sides and polyurethane filled between the two steel plates.
3. The composite wall surface structure formed by the trapezoidal plate alternating arrangement mode as claimed in claim 1, characterized in that the polyurethane sandwich composite board (23) is provided with a plurality of blocks, the end part of each polyurethane sandwich composite board (23) is provided with a butt-joint tongue-and-groove, and two polyurethane sandwich composite boards (23) which are adjacent up and down are spliced through the tongue-and-groove structure.
4. A composite wall structure formed by an alternate arrangement of trapezoidal plates as claimed in claim 1, wherein the regular trapezoidal plates and the inverted trapezoidal plates are isosceles trapezoids, and the sizes of the regular trapezoidal plates and the inverted trapezoidal plates are the same,
the regular trapezoidal plate comprises a plate body (241), a left butt joint plate (242) positioned on the left side of the plate body (241), and a right butt joint plate (243) positioned on the right side of the plate body (241), wherein the left butt joint plate (242) is an L-shaped plate, one panel of the L-shaped plate is perpendicular to the plate body (241), the other panel is parallel to the plate body (241), the right butt joint plate (243) is an L-shaped plate, one panel of the L-shaped plate is perpendicular to the plate body (241), the other panel is parallel to the plate body (241), a screw mounting block for mounting a screw (26) is further arranged on the left butt joint plate (242),
the trapezoidal plate that falls all includes plate body (241), is located left butt joint plate (242) of plate body (241), is located right butt joint plate (243) on plate body (241) right side, left side butt joint plate (242) are the L template, a panel perpendicular to plate body (241) of L template, and another panel is on a parallel with plate body (241), right side butt joint plate (243) are the L template, a panel perpendicular to plate body (241) of L template, and another panel is on a parallel with plate body (241), still be equipped with the mounting screw piece that is used for mounting screw (26) on left side butt joint plate (242).
5. A composite wall structure formed by an alternate arrangement of trapezoidal plates as claimed in claim 4, wherein the screw mounting block of the left butt plate (242) of the right trapezoidal plate is connected to the polyurethane sandwich composite plate (23) through a screw, and the right butt plate (243) of the inverted trapezoidal plate covers the left butt plate (242) of the right trapezoidal plate, so that the concealed installation of the screw is realized;
the screw mounting block of the left butt joint plate (242) of the inverted trapezoidal plate is connected to the polyurethane sandwich composite plate (23) through a screw, and the right butt joint plate (243) of the regular trapezoidal plate covers the left butt joint plate (242) of the inverted trapezoidal plate, so that concealed mounting of the screw is achieved.
6. A composite wall structure formed by an alternate arrangement of trapezoidal plates as claimed in claim 4, wherein the inner side of the plate body (241) is attached to the polyurethane sandwich composite plate (23), and the left butt-joint plate (242) and the right butt-joint plate (243) are both located at the outer side of the plate body (241).
7. A composite wall structure formed by an alternating arrangement of trapezoidal shaped panels as claimed in claim 1, wherein said plasterboard (21) has a thickness of 10-15 mm.
8. A composite wall structure formed by an alternating arrangement of trapezoidal shaped plates as claimed in claim 1, wherein the glass fiber wool (22) is filled to a thickness of 80-120 mm.
9. A composite wall structure formed by an alternating arrangement of trapezoidal shaped plates as claimed in claim 1, wherein the thickness of the polyurethane sandwich composite plate (23) is 40-60 mm.
10. A composite wall structure formed by an alternate arrangement of trapezoidal plates as claimed in claim 1, wherein the gypsum board (21) has a thickness of 12mm, the glass fiber wool (22) has a filling thickness of 100mm, and the polyurethane sandwich composite board (23) has a thickness of 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922414264.2U CN211850345U (en) | 2019-12-29 | 2019-12-29 | Composite wall structure formed by trapezoidal plates in alternative arrangement mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922414264.2U CN211850345U (en) | 2019-12-29 | 2019-12-29 | Composite wall structure formed by trapezoidal plates in alternative arrangement mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211850345U true CN211850345U (en) | 2020-11-03 |
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ID=73208052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922414264.2U Active CN211850345U (en) | 2019-12-29 | 2019-12-29 | Composite wall structure formed by trapezoidal plates in alternative arrangement mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211850345U (en) |
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2019
- 2019-12-29 CN CN201922414264.2U patent/CN211850345U/en active Active
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Address after: 200949 No. 1309 Luo Ning Road, Baoshan District, Shanghai (Baoshan Industrial Park) Patentee after: Shanghai Gangzhijie Technology Group Co.,Ltd. Address before: 200949 No. 1309 Luo Ning Road, Baoshan District, Shanghai (Baoshan Industrial Park) Patentee before: SHANGHAI BESTSTEEL STEEL STRUCTURE BUILDING SYSTEM Co.,Ltd. |