CN102127952A - Parapet wall crown rigid waterproof system - Google Patents
Parapet wall crown rigid waterproof system Download PDFInfo
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- CN102127952A CN102127952A CN 201110065964 CN201110065964A CN102127952A CN 102127952 A CN102127952 A CN 102127952A CN 201110065964 CN201110065964 CN 201110065964 CN 201110065964 A CN201110065964 A CN 201110065964A CN 102127952 A CN102127952 A CN 102127952A
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- parapet
- bridgeware
- flashing spare
- purlin
- spare
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Abstract
The invention relates to a parapet wall crown rigid waterproof system, comprising a parapet wall crown outer flashing piece, a parapet wall crown inner flashing piece, a supporting conversion piece, an outer wall board, an inner wall board, a foam plug and a parapet wall crown purline, wherein the outer flashing piece is arranged above the supporting conversion piece, the left end of the inner flashing piece is arranged inside the right end of the supporting conversion piece, and the supporting conversion piece is fixed on the upper surface of the parapet wall crown purline. In the invention, the shapes of the inner and outer flashing pieces at the parapet wall crown are changed, and the supporting conversion piece used for connecting the inner and outer flashing pieces is additionally arranged to connect the inner and outer flashing pieces, thus the connection by cement in the prior art is changed into rigid waterproof connection by virtue of the supporting conversion piece. The system provided by the invention is simple in structure, and no cement is arranged in the whole system, thus the parapet wall crow has the rigid waterproof function, and the problem that water leakage is caused by ageing of the cement at the joint is thoroughly solved.
Description
Technical field:
The present invention relates to the rigid waterproofing system at a kind of building parapet top, particularly a kind of being applied in steel work and the light steel and color plate building pushed up outer flashing spare, interior flashing spare and supported the rigid waterproofing system that bridgeware is formed by parapet.
Background technology:
In steel work and light steel and color plate building structure, the general existence that this building function key element of body of wall parapet all can be arranged, parapet often is positioned at the highest point of building, it is the top of external wall, it is attractive in appearance and waterproof requirement is very important, and the roof leakage phenomenon of a large amount of case histories also fully showed the trouble that the normal existence of this node of parapet top is leaked in the past.Prior art parapet top connected node as shown in Figure 1, the parapet top of light steel and color plate building is made up of contour plate 7 parapets top C shaped steel purlin 9 in exterior wall contour plate 6 and the parapet, exterior wall contour plate and interior contour plate are fixed on the parapet top C shaped steel purlin 9 by self-tapping screw and form parapet, and the inside and outside flashing plate on parapet top is to pass through pulling rivet.Be fixed on above-mentioned parapet top bit after the connection of fluid sealant or self-adhesion clay, so after fluid sealant or self-adhesion clay are aging, often become the hidden danger of leaking herein, although those skilled in the art are constantly studying the ageing resistance that improves fluid sealant, but sealing effectiveness at most also can only be kept 5～8 years, and the life-span of rigid building can reach 50～70 years, so can't accomplish that at all fluid sealant and building have the identical life-span; If outer flashing plate 1 ' of parapet and interior flashing plate 2 ' are processed as one, development size after then they merge often surpasses 1200mm, can not satisfy the standard-sized regulation of China's color painted steel strip, cause flashing spare to increase a large amount of splicing seams at length direction, and seam crossing must have lute in, the same hidden danger of leaking that easily forms, therefore, the waterproof on parapet top is still an insurmountable difficult problem in the prior art.
Summary of the invention:
In order to overcome the defective that prior art exists, the present invention is in the parapet top bit of building, by changing in the parapet top bit, the shape of outer flashing spare, and set up a support bridgeware that is used to connect inside and outside flashing spare and parapet top purlin, with special connected mode, with the connection between the flashing spare inside and outside the parapet, pulling rivet by prior art directly connects the indirect connection that changes into by the support bridgeware, the present invention is simple in structure, in whole the connection any fluid sealant or clay are not set, make parapet top node position have the function of rigid waterproofing, thoroughly solved a difficult problem that causes the parapet top to leak because of pulling rivet place clay is aging.
Parapet of the present invention top rigid waterproofing system, comprise: flashing spare 2, support bridgeware 3, side fascia 6, inner wall panel 7, foam plug 8, parapet top purlin 9 in the outer flashing spare 1 parapet top, parapet top, described support bridgeware 3 is an approximate right angle serpentine that keeps flat clockwise, comprise lower surface 3a, upper surface 3b, right flank 3c and facade 3d, as shown in Figure 5, supporting bridgeware lower surface 3a can be fixed on the upper surface of parapet top purlin 9 by connected nail; The left end of interior flashing spare 2 is connected with the right-hand member that supports bridgeware 3 is inboard, outer flashing spare 1 is positioned at the top of supporting bridgeware 3, its flanging 1a is positioned at the right-hand member of upper surface 1b, as shown in Figure 2, the height of flanging 1a is 25-35mm, upper surface 1b is 35～45mm apart from the height of purlin 9, the length of upper surface 1b is 100～200mm, its length is influenced by outer flashing spare left end elevation, the spreading width of flashing spare 1 is that 500mm-600mm is advisable in addition, make under China's colored steel standard specification, reach most economical effect, lower hem 1c is positioned at lower end, bottom, the outer flashing spare left side, be fixed on the side fascia 6 by connected nail, be provided with foam plug 8 between lower hem 1c and the side fascia 6, in order to guarantee sealing performance herein, as shown in Figure 3; Flashing spare 2 is the serpentine shape of approximate right angle in the parapet top, inclined-plane 2c tilts to roofing in the middle of its main body, the preferred 2-5 of tilt angle alpha °, after rainwater or snow-broth thawing, can be along this inclined-plane, centre to roof drainage, the length of middle inclined-plane 2c is 100～450mm, its concrete length should be determined according to the developed width of parapet and the development size of outer flashing spare 1, both overall sizes after launching of flashing spare 1 and interior flashing spare 2 are no more than 1000mm and are advisable in addition, left end at main body inclined-plane 2c has folding De “ Xi on " type; the width of its upper surface 2a is 20-30mm; the height of facade 2d is 20-30mm; bottom flanging 2b is positioned at the lower end, bottom of flashing spare, is connected with parapet inner wall panel 7 by connected nail, as shown in Figure 4; Support the preferred 25-40mm of width of bridgeware lower surface 3a, the inboard outside with interior flashing spare upper surface 2a of upper surface 3b of supporting bridgeware is connected and fixed by connected nail, the width of upper surface 3b is advisable than the big 10-20mm of width of interior flashing spare upper surface 2a, installation with flashing spare 2 in guaranteeing, the outside of supporting the right flank 3c of bridgeware is connected by the inboard of connected nail with outer flashing spare flanging 1a, the little 3-5mm of height of the outer flashing spare flanging 1a of the aspect ratio of right flank 3c is advisable, the joint face of flanging 1a and right flank 3c is positioned at flashing spare main body inclined-plane left end “ Xi " right side of type; form the quadrangle of lower openings; can guarantee when rainwater bigger; when on the interior flashing spare ponding being arranged; also rainwater can be blocked, thereby can not cause the situation of leaking; The height of facade 3d can be provided with according to the distance of purlin to outer flashing spare upper surface 1b, be advisable than the low 5mm of upper surface 1b, the big 8-10mm of height of facade 2d is advisable on the interior flashing spare of aspect ratio of support bridgeware facade 3d, can be by adjusting the height of facade 3d, the support bridgeware in the angle of inclination rigid waterproofing of the present invention system of inclined-plane 2c part can be along parapet top purlin in the middle of the flashing spare in regulating, arrange at interval according to the building actual conditions, generally be spaced apart 300mm-500mm.Parapet top purlin can adopt single-piece or its composite membeies such as C shaped steel Z-shape steel square tube of metal material or other material.The outer flashing spare in parapet top, can be according to the requirement of architectural design, adopt as planar shaped, garden arc, corrugated or the like shape, inside and outside flashing spare can bend at the construction field (site), also can be processed into standard component, support bridgeware and can be processed into standard component to adapt to the needs of different engineerings with corrosion resistant plate, aluminium sheet galvanized sheet or other metal sheet roof coverings
The method of attachment of parapet of the present invention top rigid waterproofing system is as follows:
The length of the upper surface 1b of step 2, the outer flashing spare 1 of basis, determine to support the horizontal range of bridgeware right flank 3c apart from side fascia 6 left sides, the length that is 1b deducts 25mm, 25mm is generally definite value, be the distance of the left part facade of outer flashing spare 1 to side fascia 6 left sides, be fixed on the upper surface of parapet top purlin 9 supporting bridgeware 3, arrange at interval along the longitudinal direction of purlin and support bridgeware 3, the lower surface 3a that will support bridgeware 3 with connected nail is fixed in the purlin upper surface.
Step 4, outer flashing spare 1 is positioned over the top of supporting bridgeware 3, and with its flanging 1a, be fixed on the right flank 3c that supports bridgeware with connected nail, at this moment lay foam plug 8 outside between flashing spare 1 and the side fascia 6, then, lower hem 1c with outer flashing spare, be fixed on the side fascia 6 with connected nail, because outer flashing spare will support the upper surface 2a of bridgeware and interior flashing spare and cover fully, even if connect the connected nail nail sick water that supports bridgeware right flank and outer flashing spare flanging, also can be in outer flashing spare flanging flows to inclined-plane and flowing on the roofing under the parapet in the middle of the flashing spare, thereby accomplished that the overlap joint junction is not provided with flexible waterproof materials such as any clay fluid sealant, and realized fully being rigidly connected.So far, finished the installation of parapet top rigid waterproofing system
The present invention is by changing in the parapet top bit, the shape of outer flashing spare and structure, and the mode of setting up the support bridgeware, inside and outside flashing spare is connected with the support bridgeware respectively, be connected with parapet top purlin and support bridgeware, with the connection between the flashing spare inside and outside the parapet, the connected nail of being established fluid sealant or self-adhesion clay by the folder of prior art directly connects the indirect waterproof connection that changes into by the support bridgeware, will make a rainwater part that drops on the outer flashing spare flow to the exterior wall outside like this, another part flows to above the interior flashing spare of parapet, because of interior flashing spare main body has certain gradient, rainwater is flow on the roofing, even rainwater is bigger, when on the interior flashing spare ponding being arranged, the left end top of interior flashing spare also can stop rainwater to flow in the parapet with the quadrangle that outer flashing spare flanging and support bridgeware right flank joint face form, thereby can not leak, thereby make the node of this position need not lay fluid sealant or clay, thoroughly solve a difficult problem that causes the parapet top to leak because of lap-joint's clay is aging, prolonged the application life of building simultaneously greatly.The present invention is simple in structure, and composite member is easy for installation, owing to there is not the setting of fluid sealant and clay, can not be infected with dust, clean appearance, attractive in appearance is easy to safeguard, overhaul simultaneously, can realize the standardization of inside and outside flashing spare and support bridgeware, have good versatility, economy.
Description of drawings
Fig. 1 is the prior art schematic diagram
Fig. 2 is that the rigid waterproofing of parapet top connects stereogram
Fig. 3 is a parapet top connected node schematic diagram
Fig. 4 is a flashing spare schematic diagram in the parapet top
Fig. 5 is for supporting the bridgeware schematic diagram
Fig. 6 is embodiment two schematic diagrames
Fig. 7 is embodiment three schematic diagrames
Shown in the figure: the outer flashing plate 1 ' of prior art parapet, flashing plate 2 ' in the prior art parapet, the outer flashing spare 1 in parapet top, outer flashing spare flanging 1a, outer flashing spare upper surface 1b, outer flashing spare lower hem 1c, flashing spare 2 in the parapet top, interior flashing spare upper surface 2a, interior flashing spare lower hem 2b, inclined-plane 2c in the middle of the interior flashing spare, facade 2d on the interior flashing spare, support bridgeware 3, support bridgeware lower surface 3a, support bridgeware upper surface 3b, support bridgeware right flank 3c, support bridgeware facade 3d, side fascia 6, rockwool sandwich board 6a, inner wall panel 7, foam plug 8, parapet top purlin 9, parapet combined type angle purlin 9a, self-adhesion clay 9 '.
The specific embodiment
Embodiment one
The rigid waterproofing system at a kind of parapet top, comprise flashing spare 2 in the outer flashing spare 1 in parapet top, the parapet top, support bridgeware 3, exterior wall contour plate 6, interior wall contour plate 7, foam plug 8, parapet top purlin 9, as shown in Figure 3, outer flashing spare 1 outside, described parapet top is a flat, is made up of flanging 1a, upper surface 1b, lower hem 1c.Flashing spare is by upper surface 2a, lower hem 2b in the parapet top, middle inclined-plane 2c, goes up facade 2d and forms, and the angle of inclination of mid portion 2c is that 2 °, length are 115mm, and flashing spare is to roof drainage in helping; Support bridgeware by lower surface 3a, upper surface 3b, right flank 3c, facade 3d forms, employing standard stamping parts, along parapet top purlin, arrange about 300mm at interval, after shown in Figure 3 being connected, outside rainwater drops on the flashing spare time, part rainwater flows to the exterior wall outside, another part flows to above the interior flashing spare of parapet, and because of certain gradient is arranged above the interior flashing spare, rainwater can flow on the roofing, when even rainwater is big, when on the interior flashing spare ponding being arranged, upwards turn up because of its left end, rainwater still can not flow in the parapet, thereby can not leak, thereby make the node of this position need not lay fluid sealant or clay, have the characteristics of rigid waterproofing naturally, its mounting method is as follows:
Step 4, outer flashing spare 1 is positioned over the top of supporting bridgeware 3, and with its top flap 1a, be fixed in the right side of the right flank 3c that supports bridgeware 3 with pulling rivet, afterwards, lower surface 1c with outer flashing spare 1, be fixed on the exterior wall contour plate 6 with pulling rivet, and 6 of flashing spare 1 and exterior wall contour plates are laid foam plug 8 outside simultaneously, because outer flashing spare 1 outer wrapping is supporting bridgeware 3b, the outside of 3c and interior flashing spare 2a, the nail Kong Buhui that has guaranteed the last pulling rivet of 3b leaks, thereby accomplished that the overlap joint junction is not provided with flexible waterproof materials such as any clay fluid sealant, but pure being rigidly connected.So far, finished the installation of parapet top rigid waterproofing system.
Embodiment two
The rigid waterproofing system at a kind of metal metope parapet top comprises flashing spare 2 in the outer flashing spare 1 in parapet top, the parapet top, supports bridgeware 3, rockwool sandwich board 6a, interior wall contour plate 7, parapet C shaped steel purlin 9.
Shown in Figure 6, outer flashing spare 1 outside, described parapet top is the garden arcuation, form by flanging 1a, upper surface 1b, lower hem 1c, flashing spare 2 is by upper surface 2a, lower hem 2b in the parapet top, middle inclined-plane 2c, last facade 2d form, the angle of inclination of mid portion 2c is that 4 °, length are 135mm, and flashing spare 2 is to roof drainage in helping; Support bridgeware 3 by lower surface 3a, upper surface 3b, right flank 3c, facade 3d forms, employing standard stamping parts, along parapet top purlin, 400mm arranges at interval, after shown in Figure 6 being connected, outside rainwater drops on the flashing spare time, part rainwater flows to exterior wall rockwool sandwich board outside, another part flows to above the interior flashing spare of parapet, because of the middle inclined-plane 2c of interior flashing spare has certain gradient, rainwater can flow on the roofing under the parapet, even when rainwater is big, when on the interior flashing spare ponding being arranged, because of its left end is upwards turned up, rainwater still can not flow in the parapet, thereby can not leak, thereby makes the node of this position have the characteristics of rigid waterproofing naturally.
Its mounting method is as follows:
Step 4, outer flashing spare is positioned over support bridgeware top, and with its top flap 1a, be fixed in the right side of supporting bridgeware right flank 3c with pulling rivet, afterwards, lower surface 1c with outer flashing spare, be fixed on the exterior wall rockwool sandwich board 6a with pulling rivet, its pulling rivet spacing is 250mm, because outer flashing spare outer wrapping is in the outside of supporting bridgeware, guarantee to support the nail Kong Buhui that bridgeware upper surface 3b goes up pulling rivet and leaked, thereby accomplished not to be provided with flexible waterproof material such as any clay fluid sealant herein, but pure being rigidly connected, so far, finished the installation of parapet top rigid waterproofing system.
Embodiment three
The rigid waterproofing system at a kind of metal metope parapet top, comprise the outer flashing spare 1 in parapet top, interior flashing spare 2, support bridgeware 3, exterior wall contour plate 6, interior wall contour plate 7, foam plug 8, parapet combined type angle purlin 9a, as shown in Figure 7, outer flashing spare 1 outside, described parapet top is chevron shaped, by flanging 1a, upper surface 1b, lower hem 1c forms, flashing spare is by upper surface 2a in the parapet top, lower hem 2b, middle inclined-plane 2c, last facade 2d forms, the angle of inclination of mid portion 2c is 5 °, length is 230mm, support bridgeware along parapet top purlin, 500mm arranges at interval, and its mounting method is as follows:
Step 4, outer flashing spare is positioned over supports bridgeware top, and with its top flap 1a, be fixed in the right side of supporting bridgeware right flank 3c with pulling rivet, afterwards, lower surface 1c with outer flashing spare, be fixed on the exterior wall contour plate 6 with pulling rivet, its pulling rivet spacing is identical with the exterior wall contour plate pitch of waves.So just guaranteed that the nail Kong Buhui that supports the last pulling rivet of bridgeware upper surface 3b leaks.Thereby accomplished not to be provided with flexible waterproof materials such as any clay fluid sealant herein, but pure being rigidly connected.So far, finished the installation of parapet top rigid waterproofing system.
Claims (10)
1. parapet top rigid waterproofing system, comprise outer flashing spare (1,) interior flashing spare (2,) support bridgeware (3,) side fascia (6,) inner wall panel (7,) parapet top purlin (9), it is characterized in that supporting bridgeware (3) and comprise lower surface (3a,) upper surface (3b,) right flank (3c) and facade (3d), the upper surface of purlin (9) is fixed in lower surface (3a) by connected nail, outer flashing spare (1) is positioned at the top of supporting bridgeware (3), its flanging (1a) is positioned at the right-hand member of upper surface (1b), the right flank (3c) that supports bridgeware is connected with the inboard of outer flashing spare flanging (1a), outer flashing spare lower hem (1c) is connected with side fascia (6), the left end of inclined-plane (2c) has a upward folding De “ Xi in the middle of the interior flashing spare " type; its upper surface (2a) is connected and fixed with the upper surface (3b) of supporting bridgeware, and by bottom flanging (2b) interior flashing spare is connected with parapet inner wall panel (7).
2. parapet as claimed in claim 1 top rigid waterproofing system is characterized in that upper surface (1b) is 35～45mm apart from the height of purlin (9).
3. parapet as claimed in claim 1 top rigid waterproofing system, the length on the middle inclined-plane of flashing spare (2c) is 100～450mm in it is characterized in that, and the angle of inclination is 2-5 °, and the width of upper surface (2a) is 20-30mm.
4. parapet as claimed in claim 1 top rigid waterproofing system is characterized in that being to support the width big 10-20mm of the width of bridgeware upper surface (3b) than interior flashing spare upper surface (2a).
5. parapet as claimed in claim 1 top rigid waterproofing system is characterized in that supporting the little 3-5mm of height of the outer flashing spare flanging (1a) of aspect ratio of bridgeware right flank (3c).
6. parapet as claimed in claim 1 or 2 top rigid waterproofing system, its feature support the low 5mm in aspect ratio upper surface (1b) of bridgeware facade (3d).
7. as the described parapet of one of claim 1-3 top rigid waterproofing system, it is characterized in that the flanging (1a) and the joint face of right flank (3c) are positioned at flashing spare main body inclined-plane left end “ Xi " right side of type, the quadrangle of formation lower openings.
8. the method for attachment of parapet as claimed in claim 1 top rigid waterproofing system is characterized in that comprising the steps:
1. respectively side fascia (6) and inner wall panel (7) are fixed in the left and right sides of purlin (9) with connected nail;
2. arrange along the longitudinal separation of purlin and support bridgeware (3), and be fixed in the purlin upper surface with the lower surface (3a) that connected nail will support bridgeware;
3. the soffit that supports bridgeware upper surface (3b) is fixed in interior flashing spare upper surface (2a) with connected nail, and the position of the interior flashing spare (2) of adjustment, make it straight,, be fixed in the crest place of inner wall panel (7) with connected nail then with the bottom flanging (2b) of interior flashing spare with purlin (9);
4. outer flashing spare 1 is positioned over the top of supporting bridgeware, and with its flanging (1a), is fixed on the right flank (3c) that supports bridgeware with connected nail, then, the lower hem (1c) with outer flashing spare is fixed on the side fascia (6) with connected nail.
9. the method for attachment of parapet as claimed in claim 8 top rigid waterproofing system is characterized in that the upper end of side fascia (6) is positioned between purlin upper surface and the outer flashing spare upper surface (1b), and the upper end of inner wall panel (7) is concordant with the purlin upper surface.
10. the method for attachment of parapet as claimed in claim 8 top rigid waterproofing system is characterized in that being equipped with foam plug (8) between the flashing spare (1) and side fascia (6) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110065964A CN102127952B (en) | 2011-03-18 | 2011-03-18 | Parapet wall crown rigid waterproof system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110065964A CN102127952B (en) | 2011-03-18 | 2011-03-18 | Parapet wall crown rigid waterproof system |
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| CN102127952A true CN102127952A (en) | 2011-07-20 |
| CN102127952B CN102127952B (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110065964A Active CN102127952B (en) | 2011-03-18 | 2011-03-18 | Parapet wall crown rigid waterproof system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636571A (en) * | 2020-05-25 | 2020-09-08 | 中国一冶集团有限公司 | Quick installation method of combined container house |
| CN114412081A (en) * | 2022-02-18 | 2022-04-29 | 中国五冶集团有限公司 | Parapet wall cap construction method for connection part of new and old plants |
| CN116250776A (en) * | 2023-02-16 | 2023-06-13 | 启迪设计集团股份有限公司 | A detachable hidden curtain wall cleaning steel frame |
| CN117052150A (en) * | 2023-06-25 | 2023-11-14 | 中国五冶集团有限公司 | Efficient installation method of finished rock wool sandwich external wall panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11141078A (en) * | 1997-11-07 | 1999-05-25 | Toshio Tamakoshi | Coping and structure of rooftop parapet using it |
| CN2658269Y (en) * | 2003-09-30 | 2004-11-24 | 张在东 | Parapet wall structure of building roofing |
| DE202009009990U1 (en) * | 2009-07-21 | 2009-10-08 | Koschmieder Bau Gmbh | Handrail System |
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2011
- 2011-03-18 CN CN201110065964A patent/CN102127952B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11141078A (en) * | 1997-11-07 | 1999-05-25 | Toshio Tamakoshi | Coping and structure of rooftop parapet using it |
| CN2658269Y (en) * | 2003-09-30 | 2004-11-24 | 张在东 | Parapet wall structure of building roofing |
| DE202009009990U1 (en) * | 2009-07-21 | 2009-10-08 | Koschmieder Bau Gmbh | Handrail System |
Non-Patent Citations (1)
| Title |
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| 《中国建筑防水》 20101231 吴建明; 卜正权; 杨俊 SDS轻钢屋面防水系统的特点及应用 第14-17页 1-10 , 第23期 2 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636571A (en) * | 2020-05-25 | 2020-09-08 | 中国一冶集团有限公司 | Quick installation method of combined container house |
| CN114412081A (en) * | 2022-02-18 | 2022-04-29 | 中国五冶集团有限公司 | Parapet wall cap construction method for connection part of new and old plants |
| CN114412081B (en) * | 2022-02-18 | 2025-09-26 | 中国五冶集团有限公司 | A parapet cap construction method for the connection between new and old factory buildings |
| CN116250776A (en) * | 2023-02-16 | 2023-06-13 | 启迪设计集团股份有限公司 | A detachable hidden curtain wall cleaning steel frame |
| CN117052150A (en) * | 2023-06-25 | 2023-11-14 | 中国五冶集团有限公司 | Efficient installation method of finished rock wool sandwich external wall panel |
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|---|---|
| CN102127952B (en) | 2012-09-26 |
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