CN101942882B - Composite board and wall panel using same - Google Patents
Composite board and wall panel using same Download PDFInfo
- Publication number
- CN101942882B CN101942882B CN 201010298331 CN201010298331A CN101942882B CN 101942882 B CN101942882 B CN 101942882B CN 201010298331 CN201010298331 CN 201010298331 CN 201010298331 A CN201010298331 A CN 201010298331A CN 101942882 B CN101942882 B CN 101942882B
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- composite board
- groove
- composite
- female tongue
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- 239000002131 composite material Substances 0.000 title claims abstract description 102
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 239000006260 foam Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 7
- 238000005187 foaming Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000000945 filler Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000004134 energy conservation Methods 0.000 description 7
- 238000009413 insulation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
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Abstract
The invention relates to a composite board and a wall panel using the same. The composite board comprises an outer panel and an inner panel, wherein a foaming filler layer is arranged between the two panels; two opposite end surfaces of the composite board are respectively and fixedly provided with a female rabbet slot type connecting piece, and two sides of the two connecting pieces are both provided with an inwards extended side wing structure used for pasting with the inner sides of the inner panel and the outer panel; and female rabbet slots corresponding to the connecting pieces are arranged between the two side wing structures. In the invention, the female rabbet slot type connecting pieces pressed by metal plates are arranged between the inner panel and the outer panel, thus the connecting strength of the connecting part of the composite board is greatly enhanced, and the composite board can be quickly connected in a mode of grafting with a bridging device; damages to the connecting part of the composite board by external factors such as wind pressure, and the like can be effectively avoided so as to prevent the conditions that cracks of the connecting part of the composite board appear, and the cracks spread to damage the composite board; and the service life of the composite board is prolonged, meanwhile, the maintenance cost is reduced.
Description
Technical field
The present invention relates to the energy saving building material field, especially a kind of composite board and use the shingle nail of this composite board.
Background technology
Along with the fast development of economy with science and technology, increasing people recognize that the core of following competition will be the competition of the energy, so the energy-conservation popular subject under discussion that becomes the whole nation and even the whole mankind gradually, and the energy is determining human future.Along with China's constant development of economy, energy-conservationly also become the problem that China more and more payes attention to, and building energy conservation is exactly one of them important step; Along with the continuous reinforcement of country to building energy conservation work, building energy-saving standard is carried out in special demands residential building and public building strictness, implements integrally the design standard of energy-conservation 50 ﹪, and the energy-saving design standard of energy-conservation 65 ﹪ is carried out in area with good conditionsi.The insulation of construction wall is most important and obtain the most significantly aspect of effect in the building energy conservation.The wall thermal insulating product that existing heat insulating energy saving material is processed on the market has a lot, but most of products otherwise when construction mounting process complicated, or can not reach the heat preservation and energy conservation effects of anticipation.Like the patent No. is that 200920028881.2 Chinese patent discloses a kind of Light trabs, and this Light trabs comprises sandwich of layers and panel, and sandwich of layers is integrally formed the formula plate body between two panels and through roll-in or bonding or perfusion and two panels; Sandwich of layers is the foamed light plate, and panel is the weighted cement composite board, and the panel edge protrudes from sandwich of layers respective edges all around; Make said Light trabs in installation process, between two blocks of wallboards, form headspace like this, generally relatively thin (in order to realize lightweight) so its intensity are limited owing to shingle nail, and the panel of above-mentioned Light trabs protrudes from sandwich of layers; Therefore the cavity that forms between the two wallboard junctions is to be enclosed by panel to form, and its intensity is limited, is easy to receive the damage of extraneous factors such as wind-force; Therefore must in said headspace, fill and to guarantee bonding strength with the bonding sticky stuffs such as cement of panel; Can connect by material thereby load cement,, be not difficult to find out though this structure has improved the heat preservation energy-saving efficient of heat-insulation wall plate to a certain extent; The corresponding edge of face plate edge protrusion sandwich of layers of above-mentioned Light trabs; This makes the inevitable in use sandwich of layers tomography that between two adjacent wallboards, forms of above-mentioned Light trabs, and promptly the headspace place between two blocks of wallboards does not have sandwich of layers, and is well-known; Sandwich of layers is the main heat preservation energy-saving member of heat-insulation wall plate; Therefore, the disconnection of sandwich of layers makes the heat preservation energy-saving performance of above-mentioned Light trabs have a greatly reduced quality, and is easy to form cold bridge phenomenon; In addition since must filling concrete when connecting between adjacent two wallboards etc. cohesive material, therefore must be at the construction field (site) the fixing loaded down with trivial details course of work such as wallboard, filling concrete slurry, this has then reduced staff's operating efficiency greatly.
Summary of the invention
The object of the present invention is to provide a kind of composite board, to solve the problem of existing composite board mounting process complicacy and junction intensity difference; The present invention also aims to provide a kind of shingle nail that uses above-mentioned composite board simultaneously.
In order to address the above problem; Composite board of the present invention adopts following technical scheme: composite board; Comprise outer panels and wainscot; Have foam filled layer between the said two panels, said composite board back to two end faces respectively be set with a female tongue and groove slot type connector, two connectors bend by metal sheet and form; The both sides of two connectors all have and are used for the flank structure that extends internally that the medial surface with inside and outside panel mounts, and are female tongue and groove groove of corresponding connector between the wing structure of both sides.
In having, the tail end of described each connector at least one flank structure separately turns edge.
Be provided with cashmere-planted layer on the external surface of described each connector.
Described two connectors are provided with heat keeper in the bottom land place of its female tongue and groove groove.
The leading edge of the flank of at least one in two connectors of said composite board protrudes from corresponding inside and outside panel.
Shingle nail of the present invention adopts following technical scheme: shingle nail; Comprise at least two blocks of composite boards that connect successively; Described each composite board comprises wainscot and outer panels; Have foam filled layer between the two panels, said each composite board back to two end faces respectively be set with a female tongue and groove slot type connector, two connectors bend by metal sheet and form; The both sides of two connectors all have and are used for the flank structure that extends internally that mounts with the medial surface of the inside and outside panel of corresponding composite board, and are female tongue and groove groove of corresponding connector between the wing structure of both sides; Two adjacent composite boards connect through bridgeware; The profile at the two ends of said bridgeware respectively with the shape complementarity of female tongue and groove groove of female tongue and groove slot type connector of corresponding compound sheet material, the two ends of bridgeware are plugged in respectively in female tongue and groove groove of two adjacent female tongue and groove slot type connectors of corresponding two composite boards.
In having, the tail end of two connectors of said each composite board at least one flank structure separately turns edge.
Be provided with cashmere-planted layer on the external surface of each connector of said each composite board.
Two connectors of said each composite board are provided with heat keeper in the bottom land place of its female tongue and groove groove.
The inside of described bridgeware has the cavity of holding, and have foam filled layer said holding in the cavity.
The leading edge of the flank of two connectors of said each composite board is concordant with the edge of corresponding panel, has between adjacent two composite boards to be used to compensate the shrinkage joint that two composite boards expand with heat and contract with cold.
Between the adjacent end face of adjacent two composite boards or have between the corresponding panel and be used to compensate the shrinkage joint that composite board expands with heat and contract with cold.
Because composite board of the present invention within it, be provided with the female tongue and groove slot type connector that is formed by pressing metal plates between the outer panels; Strengthened the bonding strength of composite board junction greatly; Therefore can be connected fast through form with the bridge-set grafting; Can effectively avoid simultaneously the destruction of extraneous factor such as blast to the junction of composite board, the damage of stretching from the crack crack appears and in the junction that prevents composite board; Reduced maintenance cost when having increased application life of composite board.
Further, in turn edge and be used between the flank of connector and corresponding panel, flowing out a fixed gap so that foam filled layer in foaming process with side bonds in said flank and the corresponding panel, the bonding strength of assurance connector and composite board; Cashmere-planted layer is used for closely cooperating with corresponding bridge-set, prevents the generation of cold bridge phenomenon; The effect of heat keeper is similar with cashmere-planted layer, is used for further preventing the generation of cold bridge phenomenon, has the function that the compensation composite board expands with heat and contract with cold simultaneously; The leading edge of the flank of connector protrudes from corresponding inside and outside panel, can when two composite boards connect, between two composite board corresponding panel, flow out flexible slit, with expanding with heat and contract with cold of compensation composite board like this.
Because the composite board of shingle nail of the present invention within it, be provided with the female tongue and groove slot type connector that is formed by pressing metal plates between the outer panels; Strengthened the bonding strength of each composite board junction greatly; Therefore can be connected fast through form with the bridgeware grafting; Can effectively avoid simultaneously the destruction of extraneous factor such as wind-force to the junction of adjacent composite board, the damage of stretching from the crack crack appears and in the junction that prevents adjacent composite board; Reduced maintenance cost when having increased application life of composite board.
Further, in turn edge and be used between the flank of connector and corresponding panel, flowing out a fixed gap so that foam filled layer in foaming process with side bonds in said flank and the corresponding panel, the bonding strength of assurance connector and composite board; Cashmere-planted layer is used for closely cooperating with corresponding bridge-set, prevents the generation of cold bridge phenomenon; The effect of heat keeper is similar with cashmere-planted layer, is used for further preventing the generation of cold bridge phenomenon, has the function that the compensation composite board expands with heat and contract with cold simultaneously; The leading edge of the flank of connector protrudes from corresponding inside and outside panel, can when two composite boards connect, between two composite board corresponding panel, flow out flexible slit, with expanding with heat and contract with cold of compensation composite board like this; At bridgeware set inside container cavity, can be used for the filling-foam packed layer and cold bridge phenomenon occurs at the bridgeware place of correspondence to prevent adjacent two composite boards.
Description of drawings
Fig. 1 is the structural representation of the embodiment 1 of composite board of the present invention;
Fig. 2 is the structural representation of female tongue and groove slot type connector among Fig. 1;
Fig. 3 is the structural representation of the embodiment 2 of composite board of the present invention;
Fig. 4 is the structural representation of the embodiment 3 of composite board of the present invention;
Fig. 5 is the structural representation of the embodiment 1 of shingle nail of the present invention;
Fig. 6 is the structural representation of the embodiment 2 of shingle nail of the present invention;
Fig. 7 is the structural representation of the embodiment 3 of shingle nail of the present invention;
Fig. 8 is the structural representation of the embodiment 4 of shingle nail of the present invention;
Fig. 9 is the structural representation of the embodiment 5 of shingle nail of the present invention.
The specific embodiment
The embodiment 1 of composite board of the present invention, as depicted in figs. 1 and 2, form by panel, foam filled layer 3 and connector.Panel comprises wainscot 1 and outer panels 2, and inside and outside panel all adopts cement fibrolite plate to process; Certainly, in other embodiments, inside and outside panel can also adopt fiber to strengthen hard material such as calcium silicate board and process, and foam filled layer 3 is located between the inside and outside panel, and foam filled layer 3 adopts the effective modification PIR polyurethane foam of energy-conserving fire retardants to process; Certainly, in other embodiments, can also adopt other fire-retardant heat-insulation material, foam filled layer 3 foaming back are integrally formed the formula structure with the corresponding crimping of inside and outside panel; Connector adopts female tongue and groove slot type connector 4; Female tongue and groove slot type connector 4 has two; Two female tongue and groove slot type connectors be fixedly set in respectively composite board back to two end faces; Female tongue and groove slot type connector 4 is colded pressing to bend and is formed by fire prevention, sound insulation, the excellent flocking steel plate of heat insulation effect, has one deck cashmere-planted layer on its external surface, and cashmere-planted layer is used to prevent the generation of cold bridge phenomenon; The both sides of female tongue and groove slot type connector 4 have and are used for the flank 5 that mounts with corresponding panel; In having, the tail end of two flanks 5 turns edge 6; In turn edge and 6 be used between flank 5 and corresponding panel, reserving the gap; So that foam filled layer 3 bonding flank 5 and corresponding panel in foaming process make female tongue and groove slot type connector 4 more firm with being connected of composite board; Has female tongue and groove groove 7 that the cross section is a rectangle between two flanks of female tongue and groove slot type connector 4; Thereby female tongue and groove groove 7 is used for being connected two composite boards with the linkage cooperation forms shingle nail; The bottom land of female tongue and groove groove 7 is provided with heat keeper 8; Heat keeper 8 adopts the insulation adhesive tape, is used for further preventing the generation of cold bridge phenomenon and expanding with heat and contract with cold of compensation composite board; The leading edge of the flank 5 of female tongue and groove slot type connector 4 protrudes from the edge of corresponding panel; Like this can be when composite board is connected with linkage between the panel of composite board and linkage, stay blind; So that the space is provided for expanding with heat and contract with cold of panel; Be convenient to simultaneously when two composite boards connect, fill jointing agent, make panel and linkage be integrally formed structure.
The embodiment 2 of composite board of the present invention, as shown in Figure 3, the difference of present embodiment and embodiment 1 is that the cross section of female tongue and groove groove 7 of female tongue and groove slot type connector 4 is trapezoidal.
The embodiment 3 of composite board of the present invention, as shown in Figure 4, the difference of present embodiment and embodiment 1 is that the cross section of female tongue and groove groove of one in two female tongue and groove slot type connectors of said composite board is a rectangle, another is trapezoidal.
In the foregoing description, the cross section of female tongue and groove groove of said female tongue and groove slot type connector can also be shapes such as zigzag such as minor arc shape, can also only in a flank tail end of each female tongue and groove slot type connector 4 is provided with, turn edge; Can also only protrude from corresponding panel with one in two female tongue and groove slot type connectors of composite board.
The embodiment 1 of shingle nail of the present invention, as shown in Figure 5, by two composite boards 11 and the bridgeware 12 that is used to connect two composite boards 11 etc. form.Composite board 11 is identical with the structure of the embodiment 1 of composite board of the present invention, is made up of wainscot 21, outer panels 22, foam filled layer, female tongue and groove slot type connector 24, heat keeper 25 etc.; It is the metal side tube of rectangle that bridgeware 12 adopts cross section; Be filled with foam filled layer in the bridgeware 12; Foam filled layer is used to prevent cold bridge phenomenon occurs at bridgeware 12 places between two composite boards 11, and the two ends of bridgeware 12 are corresponding respectively to be plugged in female tongue and groove groove of the adjacent female tongue and groove slot type connector of two composite boards 11 and further fixing through nail 14; The side that two composite boards are adjacent has shrinkage joint 13 (4-5 millimeter) between the two corresponding panel; Shrinkage joint 13 is used to compensate expanding with heat and contract with cold of corresponding panel; Can be in the shrinkage joint jointing agent of filling flexible; Make the appearance of shingle nail of the present invention more attractive in appearance with this, compensate for expanding with heat and contract with cold of adjacent two composite boards simultaneously, prevent the crack.
The embodiment 2 of shingle nail of the present invention; As shown in Figure 6; The difference of present embodiment and embodiment 1 only is that the cross section of female tongue and groove groove of said female tongue and groove slot type connector is trapezoidal, and bridgeware 12 and the cross section of the both sides of corresponding compound sheet material are corresponding trapezoidal.
The embodiment 3 of shingle nail of the present invention; As shown in Figure 7; The difference of present embodiment and embodiment 1 is that the cross section of female tongue and groove groove of female tongue and groove slot type connector of an end of said each composite board 11 is a rectangle, and the cross section of female tongue and groove groove of female tongue and groove slot type connector of the other end is trapezoidal; The cross section of said bridgeware 12 corresponding both sides is respectively and the complementary rectangle of the female tongue and groove groove profile of two female tongue and groove slot type connectors and trapezoidal.
The embodiment 4 of shingle nail of the present invention; As shown in Figure 8; Present embodiment and the difference of the embodiment 1 of shingle nail of the present invention are the flank leading edge and the concordant setting in corresponding panel edge of female tongue and groove slot type connector 24 of composite board 11; Increase the distance (4-5 millimeter) between the both ends of the surface that bridgeware 13 is used for being connected with two composite boards then, thereby reserve the flexible slit 13 between adjacent two composite boards.
The embodiment 5 of shingle nail of the present invention; As shown in Figure 9; The difference of the embodiment 1 of present embodiment and shingle nail of the present invention is that the cross section of bridgeware 12 is I-shaped, the shape and the connector corresponding complementary of female tongue and groove slot type connector 24 of each composite board 11.
Among above-mentioned each embodiment of shingle nail of the present invention, shingle nail can also be formed by connecting three or more composite board.
Claims (4)
1. shingle nail; Comprise at least two blocks of composite boards that connect successively; Described each composite board comprises wainscot and outer panels; Have foam filled layer between the two panels, it is characterized in that: said each composite board back to two end faces respectively be set with a female tongue and groove slot type connector, two connectors bend by metal sheet and form; The both sides of two connectors all have and are used for the flank structure that extends internally that mounts with the medial surface of the inside and outside panel of corresponding composite board; Be female tongue and groove groove of corresponding connector between the wing structure of both sides, two adjacent composite boards connect through bridgeware, the profile at the two ends of said bridgeware respectively with the shape complementarity of female tongue and groove groove of female tongue and groove slot type connector of corresponding compound sheet material; The two ends of bridgeware are plugged in respectively in female tongue and groove groove of two adjacent female tongue and groove slot type connectors of corresponding two composite boards; Turn edge in the tail end of two connectors of said each composite board at least one flank structure separately has, be provided with cashmere-planted layer on the external surface of each connector of each composite board, two connectors of each composite board are provided with heat keeper in the bottom land place of its female tongue and groove groove; The inside of described bridgeware has the cavity of holding, and have foam filled layer said holding in the cavity.
2. shingle nail according to claim 1 is characterized in that: the leading edge of the flank of two connectors of said each composite board is concordant with the edge of corresponding panel, has between adjacent two composite boards to be used to compensate the shrinkage joint that two composite boards expand with heat and contract with cold.
3. shingle nail according to claim 1 is characterized in that: have between the adjacent end face of adjacent two composite boards and be used to compensate the shrinkage joint that composite board expands with heat and contract with cold.
4. shingle nail according to claim 1 is characterized in that: have between the corresponding panel of two adjacent composite boards and be used to compensate the shrinkage joint that composite board expands with heat and contract with cold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010298331 CN101942882B (en) | 2010-09-30 | 2010-09-30 | Composite board and wall panel using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010298331 CN101942882B (en) | 2010-09-30 | 2010-09-30 | Composite board and wall panel using same |
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| Publication Number | Publication Date |
|---|---|
| CN101942882A CN101942882A (en) | 2011-01-12 |
| CN101942882B true CN101942882B (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010298331 Expired - Fee Related CN101942882B (en) | 2010-09-30 | 2010-09-30 | Composite board and wall panel using same |
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Families Citing this family (9)
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| CN102691364A (en) * | 2012-05-22 | 2012-09-26 | 河海大学 | Composite steel plate shearing wall for improving stability |
| CN104060709B (en) * | 2014-07-08 | 2017-02-08 | 大庆华夏绿垣建材科技开发有限公司 | Combined energy-saving heat preservation building wall board with heat insulation bridges |
| CN104831828B (en) * | 2015-04-17 | 2017-07-21 | 马恒忠 | Factorial praluction assembled energy-saving light composite board shape wall |
| CN105852535A (en) * | 2016-06-14 | 2016-08-17 | 江苏佰家丽新材料科技有限公司 | Surface treatment method for polyester fiber sound-absorbing screen connector |
| CN106320564A (en) * | 2016-09-06 | 2017-01-11 | 沈阳远大瑞福工程技术有限公司 | Alignment connector of concave-box wallboard |
| CN106939652A (en) * | 2017-03-22 | 2017-07-11 | 河南天丰节能板材科技股份有限公司 | A kind of assembled compoboard and its heat preservation plate material |
| CN106939651A (en) * | 2017-03-22 | 2017-07-11 | 河南天丰节能板材科技股份有限公司 | A kind of heat preservation plate material and the compoboard using the heat preservation plate material |
| CN110593483B (en) * | 2019-09-19 | 2022-07-29 | 大亚人造板集团有限公司 | Manufacturing method of light environment-friendly composite wallboard |
| US10829929B1 (en) | 2019-12-19 | 2020-11-10 | Greggory Hansen | System and method for assembling structural insulated panels |
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| CN2339658Y (en) * | 1998-09-23 | 1999-09-22 | 高文利 | Cement light composite decorative wall plate |
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| DE10324351A1 (en) * | 2002-07-24 | 2004-02-05 | A. Hangleiter Gmbh & Co. Kg | Fastener for securing vacuum insulating panels has a flexible film linking two grip flanges and with attached wall mounting grip |
| CN2820529Y (en) * | 2005-08-12 | 2006-09-27 | 杨宏旗 | Embossing metal surface composite board |
| CN101338607A (en) * | 2008-09-01 | 2009-01-07 | 新乡天丰钢板开发有限公司 | Metallic face sandwiched composite board and assembled composite wall panel |
| CN201802002U (en) * | 2010-09-30 | 2011-04-20 | 河南天丰节能板材科技股份有限公司 | Composite board and wall surface board using same |
-
2010
- 2010-09-30 CN CN 201010298331 patent/CN101942882B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339658Y (en) * | 1998-09-23 | 1999-09-22 | 高文利 | Cement light composite decorative wall plate |
| DE10324351A1 (en) * | 2002-07-24 | 2004-02-05 | A. Hangleiter Gmbh & Co. Kg | Fastener for securing vacuum insulating panels has a flexible film linking two grip flanges and with attached wall mounting grip |
| CN2584773Y (en) * | 2002-12-06 | 2003-11-05 | 山东大正天丰不锈钢建材有限公司 | Wheelless sealing slideway heat insulating bridge sliding device |
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| CN201802002U (en) * | 2010-09-30 | 2011-04-20 | 河南天丰节能板材科技股份有限公司 | Composite board and wall surface board using same |
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| CN101942882A (en) | 2011-01-12 |
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Address after: 453000 No. 1625, Xinyi street, development zone, Xinxiang City, Henan Province Patentee after: Lvfeng Energy Saving Technology Co.,Ltd. Address before: 450003 No. 369, Xinyi street, Xinxiang City, Henan Province Patentee before: HENAN TIANFON ENERGY-SAVING PANEL SCIENCE AND TECHNOLOGY Co.,Ltd. |
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