CN102409811A - Air-tight heat insulation metal roof and construction method thereof - Google Patents
Air-tight heat insulation metal roof and construction method thereof Download PDFInfo
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- CN102409811A CN102409811A CN2011102305443A CN201110230544A CN102409811A CN 102409811 A CN102409811 A CN 102409811A CN 2011102305443 A CN2011102305443 A CN 2011102305443A CN 201110230544 A CN201110230544 A CN 201110230544A CN 102409811 A CN102409811 A CN 102409811A
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Abstract
The invention discloses an air-tight heat insulation metal roof and a construction method thereof. The air-tight heat insulation metal roof comprises a roof truss, a plurality of purline supports, a plurality of purlines, a plurality of metal bottom plates, a plurality of metal top plates and glass wool, wherein the purline supports are welded on the truss at fixed intervals; the plurality of purlines are fixed on the purline supports through bolts; the adjacent metal bottom plates are mutually buckled and fixed on the purlines through a plurality of fixed bases; the adjacent metal top plates are mutually buckled and fixed on the metal bottom plates through a heat insulation metal fixed seat; and the glass wool is spread between the metal bottom plates and the metal top plates. By adopting the air-tight heat insulation metal roof and the construction method thereof, air-tight heat insulation construction of plant roofs of high-technology industries such as electronics, biological pharmacy and the like is realized; and the air-tight heat insulation metal roof and the construction method have the advantages of high construction efficiency, low construction cost and a small number of construction processes.
Description
Technical field
The present invention relates to a kind of roofing and job practices thereof, refer to a kind of airtight insulated metal roofing and job practices thereof especially.
Background technology
Along with developing rapidly of high-tech industry such as China's electronics, bio-pharmaceuticals become a kind of trend; There is the factory building of airtight heat insulation requirement to increase gradually; But present conventional roofing and job practices thereof are not suitable for the airtight heat insulation constructions of high-tech industry such as electronics, bio-pharmaceuticals, and can not satisfy airtight heat insulation requirement well, and it is slow to have speed of application simultaneously; Problems such as construction cost is high, and working procedure is loaded down with trivial details.
Summary of the invention
The objective of the invention is to overcome the defective of prior art, and a kind of airtight insulated metal roofing and job practices thereof are provided, it has airtight thermal stability height, can satisfy airtight heat insulation requirement, and efficiency of construction is high, and construction cost is low, the advantage that working procedure is few.
The technical scheme that realizes above-mentioned purpose is:
A kind of airtight insulated metal roofing of the present invention, roofing is fixed on the purlin, comprising:
A plurality of purlin holders are welded on the said truss said purlin holder constant spacing;
A plurality of purlins, said purlin pass through bolt in said purlin holder;
A plurality of metal base plates, mutual snapping between the said adjacent metal base plate, and be fixed on the said purlin through the plurality of fixed base;
A plurality of metal top plate, mutual snapping and be fixed on the said metal base plate between the said adjacent metal top board through a heat insulating metal holder;
Glass wool, said glass wool are layed between said metal base plate and the said metal top plate.
Above-mentioned adjacent metal base plate comprises one first metal base plate and one second metal base plate; The end of said first metal base plate forms first buckling parts of one first metal base plate; The end of second metal base plate forms second buckling parts of one second metal base plate; Said first metal base plate and said second metal base plate are anchored on said firm banking through one first clip component: first end chucking of the said first clip component is fixed between the two adjacent said firm bankings; Second end of the said first clip component is fastened on first buckling parts of said first metal base plate, and is fastened under second buckling parts of said second metal base plate.
Paste the EPDM adhesive tape between second end of first buckling parts of above-mentioned first metal base plate, the first clip component and second buckling parts of second metal base plate, the button seam place of second buckling parts of said second metal base plate and first buckling parts of first metal base plate is marked with fluid sealant.
Above-mentioned adjacent metal top board comprises one first metal top plate and one second metal top plate, and the end of said first metal top plate forms first buckling parts of one first metal top plate; The end of said second metal top plate forms second buckling parts of one second metal top plate; Said first metal top plate and said second metal top plate are anchored on said heat insulating metal holder through one second clip component; First end chucking of the said second clip component is fixed in the top of said heat insulating metal holder, and the bottom chucking of heat insulating metal holder is fixed on second buckling parts of said second metal base plate; Second end is fastened on first buckling parts of said first metal top plate, and is fastened under second buckling parts of said second metal top plate.
Above-mentioned heat insulating metal holder is made up of three parts, and top is that stainless steel, centre are divided into galvanized steel plain sheet for white flame-retarded resin, bottom.
A kind of job practices based on airtight insulated metal roofing of the present invention may further comprise the steps:
S1: set up roofing truss, with a plurality of purlin holder constant spacings be welded on the said truss, again with a plurality of purlins through bolt in said purlin holder;
S2: with plurality of fixed base constant spacing be welded on the said purlin;
S3: on said firm banking, lay metal base plate, mutual snapping and being fixed on the said firm banking between the said adjacent metal base plate;
S4: on said metal base plate, lay glass wool;
S5: on said glass wool, lay metal top plate, mutual snapping and be fixed on the said metal base plate between the said adjacent metal top board through a heat insulating metal holder;
S6: carry out airtight receipts limit at gable, ridge, cornice place, will receive side plate and truss is fixed, and accomplish the laying of edge's metal base plate and metal top plate.
Through following steps to carrying out mutual snapping between the above-mentioned adjacent metal base plate and being fixed on the said firm banking:
Form one first buckling parts in the end of one first metal base plate;
End at second metal base plate of adjacent said first metal base plate forms one second buckling parts;
First end of one first clip component chucking is fixed between the two adjacent fixed bases, second end of the said first clip component is fastened on first buckling parts of said first metal base plate;
Second buckling parts of said second metal base plate is fastened on second end of the said first clip component.
Through following steps to carrying out mutual snapping between the said adjacent metal top board and being fixed on the said metal base plate:
Form one first buckling parts in the end of one first metal top plate;
End in second metal top plate of adjacent said first metal top plate forms one second buckling parts;
First end of one second clip component chucking is fixed in the top of said heat insulating metal holder, second end of the said second clip component is fastened on first buckling parts of said first metal top plate;
The bottom chucking of said heat insulating metal holder is fixed on second buckling parts of said second metal base plate,
Second buckling parts of said second metal top plate is fastened on second end of the said second clip component.
Be fastened at second end before first buckling parts of said first metal base plate, on first buckling parts of said first metal base plate, paste the EPDM adhesive tape earlier the above-mentioned first clip component; Be fastened at second buckling parts before second end of the said first clip component, on second end of the said first clip component, paste the EPDM adhesive tape earlier said second metal base plate.
After second buckling parts with above-mentioned second metal base plate is fastened on second end of the said first clip component, also comprise step: inject fluid sealant at second buckling parts of said second metal base plate and the outside button of first buckling parts seam place of said first metal base plate.
The present invention has been owing to adopted above technical scheme, makes it have following beneficial effect to be:
The airtight thermal stability of roofing is high, and is anticorrosion, antirust and fireproof performance is good, and simple in structure being convenient to installed; Realize the airtight heat insulation construction of high-tech industry factory building roofs such as electronics, bio-pharmaceuticals, guaranteed the speed of application of double-deck airtight insulated metal roofing, reduced the operation of construction; It is good to have air-tightness, and heat-proof quality is high, and efficiency of construction is high; Construction cost is low, the advantage that working procedure is few.
Description of drawings
Fig. 1 is the roof structure sketch map of airtight insulated metal roofing of the present invention and job practices thereof;
Fig. 2 decomposes view for the metal base plate buckling parts of airtight insulated metal roofing of the present invention and job practices thereof;
Fig. 3 is the metal base plate buckling parts buckling state structural representation of airtight insulated metal roofing of the present invention and job practices thereof;
Fig. 4 is the metal top plate buckling parts buckling state structural representation of airtight insulated metal roofing of the present invention and job practices thereof;
Fig. 5 fastens the installation steps sketch map for the metal base plate of airtight insulated metal roofing of the present invention and job practices thereof.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further.
See also Fig. 1, a kind of airtight insulated metal roofing of the present invention comprises a roofing truss 3, also comprises:
A plurality of metal base plates 7, mutual snapping between the adjacent metal base plate 7, and be fixed on the purlin 2 through plurality of fixed base 5; Purlin 2 is anchored on purlin holder 1 through bolt 4, is welded on the truss 3 purlin holder 1 constant spacing; Glass wool 8 is layed on the metal base plate 7, and this glass wool 8 is that PE (polyvinyl) film glass is cotton, and thickness in monolayer is 80mm, and weight is 16kg/m; A plurality of metal top plate 9 are layed on the glass wool 8, mutual snapping and be fixed on the metal base plate 7 between the adjacent metal top board 9 through a heat insulating metal holder 6, and metal top plate 9 adopts the 0.8mmPVDF steel plates.Heat insulating metal holder 6 is made up of three parts; Top is that stainless steel, centre are divided into galvanized steel plain sheet for white flame-retarded resin, bottom; Its middle and upper part stainless steel contacts with the upper strata flashing board, and preventing to get rusty influences the cleanliness factor of air, and middle part flame-retarded resin material is cut off the heat that top plate brings; Play heat-blocking action, bottom not galvanized steel plain sheet is play anticorrosion and the effect of top plate strength of stability.
See also Fig. 2,3, adjacent metal base plate 7 comprises one first metal base plate 71 and one second metal base plate 72; The end parts of first metal base plate 71 forms first buckling parts 11 of one first metal base plate 71; First buckling parts 11 and second buckling parts 15 of second metal base plate 72 that the end parts of second metal base plate 72 forms second buckling parts, 15, the first metal base plates 71 of one second metal base plate 72 are anchored on firm banking 5 through one first clip component 12; First end, 121 chuckings of the first clip component 12 are fixed between the two adjacent fixed bases 5; Second end 122 of the first clip component 12 is fastened on first buckling parts 11 of first metal base plate 71, and is fastened on second buckling parts 15 times of second metal base plate 72.
Paste EPDM (EPDM) adhesive tape 13 between second buckling parts 15 of first buckling parts 11 of first metal base plate 71, second end of the first clip component 12 and second metal base plate 72; The button seam place of second buckling parts 15 of second metal base plate 72 and first buckling parts 11 of first metal base plate 71 is marked with fluid sealant 14; Fluid sealant 14 is sealing silicone grease glue, guarantees the airtight effect of roofing through adhesive tape 13 and fluid sealant 14.Metal base plate 7 is the 0.8mmGL corrugated steel, and adopts the airtight sheet material of metal.
See also Fig. 4, adjacent metal top board 9 comprises one first metal top plate 91 and one second metal top plate 92, and itself and above-mentioned metal base plate manner are similar, and the end of first metal top plate 91 forms first buckling parts 11 of one first metal top plate 91; The end of second metal top plate 92 forms second buckling parts 15 of one second metal top plate 92; First buckling parts 11 of first metal top plate 91 and second buckling parts 15 of second metal top plate 92 are anchored on heat insulating metal holder 6 through one second clip component 16; The bottom chucking of heat insulating metal holder 6 is fixed on second buckling parts 15 of second metal base plate 72; Top 6, the second ends that first end of the second clip component 16 chucking is fixed in the heat insulating metal holder are fastened on first buckling parts 11 of first metal top plate 91, and are fastened on second buckling parts 15 times of second metal top plate 92.
The job practices of this airtight insulated metal roofing may further comprise the steps:
S1: set up roofing truss 3, with a plurality of purlin holder 1 constant spacings be welded on the truss 3, more a plurality of purlins 2 are fixed in the purlin holder 1 through bolt 4;
Double-deck airtight heat insulating metal heat-insulated roof purlin holder 1 welding procedure is had relatively high expectations to planeness, after truss 3 constructions are accomplished; Need to proofread and correct construction, and the inspection correcting result to steel column and roofing, treat that complete inspection meets the requirements after; And all truss 3 are anticorrosion, antirust and fire prevention is handled; All purlin holder 1 arrangement pitchs are through calculating, and warp design audit, can carry out purlin holder 1 and arrange welding procedure.After purlin holder 1 was welded with truss 3, antiseptic and rustproof processing was carried out in trimming, finish paint brush ring oxygen coating.After purlin holder 1 installation; Carry out same direction, same absolute altitude height measure, if same direction height surpasses 20mm, should give the adjustment of metal shimming; Pad must pass through anticorrosion, antirust processing; Treat that all highly put adjustment and finish, carry out purlin 2 and install that 1 employing of purlin 2 and purlin holder bolt 4 carries out fastening.
S2: with plurality of fixed base 5 constant spacings be welded on the purlin 2;
Before firm banking 5 is installed, should carry out firm banking 5 and measure unwrapping wire, firm banking 5 adopts the fine melt welding with purlin 2 welding, and trimming in time, does anticorrosion, antirust processing.
S3: on firm banking 5, lay metal base plate 7, snapping and being fixed on the firm banking 5 each other between the adjacent metal base plate 7;
See also Fig. 5, through following steps to carrying out mutual snapping between the adjacent metal base plate 7 and being fixed on the firm banking 5:
Form one first buckling parts 11 in the end of one first metal base plate 7;
End at second metal base plate 7 of adjacent this first metal base plate 7 forms one second buckling parts 15;
On first buckling parts 11 of first metal base plate 7, paste EPDM adhesive tape 13;
On second end of the first clip component 12, paste EPDM adhesive tape 13;
Second buckling parts 15 of second metal base plate 7 is fastened on second end of the first clip component 12;
Inject fluid sealant 14 at second buckling parts 15 of second metal base plate 7 and first buckling parts, the 15 outside button seam places of first metal base plate 7.
Metal base plate 7 fastens plural number through manual fastening means and electronic fastening means, when connecting through manual fastening means, whenever fastens once at a distance from a constant spacing.Can whenever once reach temporary fixed through manual fastening means earlier, fasten once through electronic fastening means whole piece again at a distance from three meters fastenings, totally twice, in whole process, to keep the clean and tidy of roofing.
The laying of metal base plate 7 and die casting are carried out simultaneously.
Before laying metal base plate 7, set up the moulding pallet according to scheme earlier, the forming supporter table top is stacked facility materials such as uncoiling machine, cutting off machine, forming machine and coil of strip; About 16 tons of gross weight, forming supporter stage body system is the steel pipe scaffold support system, when steel pipe scaffold is set up; Need can to set up through strict calculating support system, scaffolding height is consistent with the pitched roof minimum point, set up need after the completion qualified by inspection after; Can come into operation, carry out template again and lay uncoiling machine, forming press hoisted in position; Carry out security maintenance simultaneously, thereby realize base plate 7 die casting a slices laying a slice, make the laying of base plate 7 and die casting carry out simultaneously.When carrying out the construction of coil of strip die cast; 40 meters of moulding base plate 7 length (maximum length can to 300 meters), crest height 166mm; At any time check in the press casting procedure whether moulding base plate 7 adheres to specification, like crest height, crest face horizontal dimension, should stop die casting immediately when pinpointing the problems.
S4: on metal base plate 7, lay glass wool 8; Glass wool 8 is laid bilayers and seam crossing staggers, and for the prevention change in weather is laid for the subregion generally speaking, completion laid by the glass wool 8 in a zone after passed examination, and subsequent handling is carried out in this zone at once.
S5: on glass wool 8, lay metal top plate 9, snapping and be fixed on the metal base plate 7 through a heat insulating metal holder 6 and (see also Fig. 3) each other between the adjacent metal top board 9;
Should evenly arrange by design size when heat insulating metal holder 6 is installed, can not arbitrarily install, need after the installation to check and accept.
Through following steps to carrying out mutual snapping between the adjacent metal top board 9 and being fixed on the metal base plate 7:
Form one first buckling parts 11 in the end of one first metal top plate 9;
End in second metal top plate 9 of adjacent this first metal top plate 9 forms one second buckling parts 15;
First end of one second clip component 16 chucking is fixed in the top of heat insulating metal holder 6, second end of the second clip component 16 is fastened on first buckling parts 11 of first metal top plate 9;
With heat insulating metal holder 6 bottom chucking be fixed on second buckling parts 15 of second metal base plate 7,
Second buckling parts 15 of second metal top plate 9 is fastened on second end of the second clip component 16.
S6: carry out airtight receipts limit at gable, ridge, cornice place; Gable is received side plate 17 to be fixed with truss 3 with end receipts side plate 10; And the laying of completion edge metal base plate 7 and metal top plate 9; Realize that eaves limit and partition wall slit place closes up, reach 100 grades in order to ensure tightness, it is the thick galvanized steel plain sheet of 2mm that gable receipts side plate 17 is received side plate 10 with the end.
In addition; Calcium silicate board internal partition wall end face absolute altitude is concordant with metal Roof purlin 2 upper surfaces; Combine with roofing metal base plate 7; Play airtight effect, ridge, gable are not done when waterproof is received the limit and must be taked as corresponding measures such as interim receipts limit or plastic paper covering are installed this one to be carried out interim waterproof, prevent glass wool 8 water inlets.
More than combine accompanying drawing embodiment that the present invention is specified, those skilled in the art can make the many variations example to the present invention according to above-mentioned explanation.Thereby some details among the embodiment should not constitute qualification of the present invention, and the scope that the present invention will define with appended claims is as protection scope of the present invention.
Claims (10)
1. an airtight insulated metal roofing comprises a roofing truss, it is characterized in that, also comprises:
A plurality of purlin holders are welded on the said truss said purlin holder constant spacing;
A plurality of purlins, said purlin pass through bolt in said purlin holder;
A plurality of metal base plates, mutual snapping between the said adjacent metal base plate, and be fixed on the said purlin through the plurality of fixed base;
A plurality of metal top plate, mutual snapping and be fixed on the said metal base plate between the said adjacent metal top board through a heat insulating metal holder;
Glass wool, said glass wool are layed between said metal base plate and the said metal top plate.
2. airtight insulated metal roofing according to claim 1 is characterized in that, said adjacent metal base plate comprises one first metal base plate and one second metal base plate; The end of said first metal base plate forms first buckling parts of one first metal base plate; The end of second metal base plate forms second buckling parts of one second metal base plate; Said first metal base plate and said second metal base plate are anchored on said firm banking through one first clip component:
First end chucking of the said first clip component is fixed between the two adjacent said firm bankings; Second end of the said first clip component is fastened on first buckling parts of said first metal base plate, and is fastened under second buckling parts of said second metal base plate.
3. according to the described airtight insulated metal roofing of claim 2; It is characterized in that; Paste the EPDM adhesive tape between second end of first buckling parts of said first metal base plate, the said first clip component and second buckling parts of said second metal base plate, the button seam place of second buckling parts of said second metal base plate and first buckling parts of said first metal base plate is marked with fluid sealant.
4. airtight insulated metal roofing according to claim 2 is characterized in that, said adjacent metal top board comprises one first metal top plate and one second metal top plate, and the end of said first metal top plate forms first buckling parts of one first metal top plate; The end of said second metal top plate forms second buckling parts of one second metal top plate; Said first metal top plate and said second metal top plate are anchored on said heat insulating metal holder through one second clip component;
The bottom chucking of said heat insulating metal holder is fixed on second buckling parts of said second metal base plate;
First end chucking of the said second clip component is fixed in the top of said heat insulating metal holder, and second end is fastened on first buckling parts of said first metal top plate, and is fastened under second buckling parts of said second metal top plate.
5. the airtight insulated metal roofing of bilayer according to claim 1 is characterized in that said heat insulating metal holder is made up of three parts, and top is that stainless steel, centre are divided into galvanized steel plain sheet for white flame-retarded resin, bottom.
6. the job practices based on airtight insulated metal roofing is characterized in that, may further comprise the steps:
S1: set up roofing truss, with a plurality of purlin holder constant spacings be welded on the said truss, again with a plurality of purlins through bolt in said purlin holder;
S2: with plurality of fixed base constant spacing be welded on the said purlin;
S3: on said firm banking, lay metal base plate, mutual snapping and being fixed on the said firm banking between the said adjacent metal base plate;
S4: on said metal base plate, lay glass wool;
S5: on said glass wool, lay metal top plate, mutual snapping and be fixed on the said metal base plate between the said adjacent metal top board through a heat insulating metal holder;
S6: carry out airtight receipts limit at gable, ridge, cornice place, will receive side plate and truss is fixed, and accomplish the laying of edge's metal base plate and metal top plate.
7. the airtight insulated metal roofing job practices of bilayer according to claim 6 is characterized in that, through following steps to carrying out mutual snapping between the said adjacent metal base plate and being fixed on the said firm banking:
Form one first buckling parts in the end of one first metal base plate;
End at second metal base plate of adjacent said first metal base plate forms one second buckling parts;
First end of one first clip component chucking is fixed between the two adjacent fixed bases, second end of the said first clip component is fastened on first buckling parts of said first metal base plate;
Second buckling parts of said second metal base plate is fastened on second end of the said first clip component.
8. the airtight insulated metal roofing job practices of bilayer according to claim 7 is characterized in that, through following steps to carrying out mutual snapping between the said adjacent metal top board and being fixed on the said metal base plate:
Form one first buckling parts in the end of one first metal top plate;
End in second metal top plate of adjacent said first metal top plate forms one second buckling parts;
First end of one second clip component chucking is fixed in the top of said heat insulating metal holder, second end of the said second clip component is fastened on first buckling parts of said first metal top plate;
The bottom chucking of said heat insulating metal holder is fixed on second buckling parts of said second metal base plate,
Second buckling parts of said second metal top plate is fastened on second end of the said second clip component.
9. the airtight insulated metal roofing job practices of bilayer according to claim 7; It is characterized in that; Be fastened at second end before first buckling parts of said first metal base plate, on first buckling parts of said first metal base plate, paste the EPDM adhesive tape earlier the said first clip component;
Be fastened at second buckling parts before second end of the said first clip component, on second end of the said first clip component, paste the EPDM adhesive tape earlier said second metal base plate.
10. the airtight insulated metal roofing job practices of bilayer according to claim 7; It is characterized in that; After second buckling parts with said second metal base plate is fastened on second end of the said first clip component, also comprise step: at second buckling parts and said first gold medal of said second metal base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110230544 CN102409811B (en) | 2011-08-12 | 2011-08-12 | Air-tight heat insulation metal roof and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110230544 CN102409811B (en) | 2011-08-12 | 2011-08-12 | Air-tight heat insulation metal roof and construction method thereof |
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| CN102409811A true CN102409811A (en) | 2012-04-11 |
| CN102409811B CN102409811B (en) | 2013-09-25 |
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| CN 201110230544 Active CN102409811B (en) | 2011-08-12 | 2011-08-12 | Air-tight heat insulation metal roof and construction method thereof |
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| CN103174262A (en) * | 2013-03-20 | 2013-06-26 | 江苏扬州建工建设集团有限公司 | Construction method for super-long steel plate roof |
| CN104234331A (en) * | 2013-06-20 | 2014-12-24 | 五冶集团上海有限公司 | Eave and frontispiece airtight side-closing installation method for airtight metal roof |
| CN104652714A (en) * | 2015-01-30 | 2015-05-27 | 广西壮族自治区冶金建设公司 | Construction method for pore-forming installation of self-made mold for steel structure roofing lining panels |
| CN106760262A (en) * | 2016-12-13 | 2017-05-31 | 上海宝冶集团有限公司 | Metal Roof breaks the disconnected thermal means of hot gold utensil base and metal roof tile junction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103174262A (en) * | 2013-03-20 | 2013-06-26 | 江苏扬州建工建设集团有限公司 | Construction method for super-long steel plate roof |
| CN104234331A (en) * | 2013-06-20 | 2014-12-24 | 五冶集团上海有限公司 | Eave and frontispiece airtight side-closing installation method for airtight metal roof |
| CN104234331B (en) * | 2013-06-20 | 2016-08-10 | 五冶集团上海有限公司 | The cornice of airtight metal roofing and gable airtight receipts limit installation method |
| CN104652714A (en) * | 2015-01-30 | 2015-05-27 | 广西壮族自治区冶金建设公司 | Construction method for pore-forming installation of self-made mold for steel structure roofing lining panels |
| CN106760262A (en) * | 2016-12-13 | 2017-05-31 | 上海宝冶集团有限公司 | Metal Roof breaks the disconnected thermal means of hot gold utensil base and metal roof tile junction |
| CN106760262B (en) * | 2016-12-13 | 2019-09-10 | 上海宝冶集团有限公司 | Metal Roof breaks the hot method of breaking of hot fitting pedestal and metal roof tile junction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102409811B (en) | 2013-09-25 |
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