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roofing tile related news
Identify the merits of aluminum doors and
windows , the material selected materials are six aspects can refer to:
1 Thickness: aluminum sliding doors , 70 series, 90 series of two kinds , residential interior aluminum sliding doors with 70 series can be. Series number indicates the thickness of the door frame structure dimensions in millimeters . Aluminum sliding windows , 55 series, 60 series, 70 series , 90 series of four. Series selection should be based on the size and the local wind pressure or windows depending on the value . As a closed veranda aluminum sliding windows should not be less than 70 series. stone coated metal roofing tile
(2) Strength : Tensile strength should reach 157 Newtons per square millimeter , the yield strength to reach 108 Newtons per square millimeter . When you purchase , you can hand moderately curved profiles, let go after the state should be able to recover . stone coated metal roofing tile supplier
3 Color : Same color should be consistent with an aluminum alloy , such as color obviously , that should not be optional . stone coated metal roofing tile factory
4 Flatness: Check the aluminum alloy surface , there should be no dents or bulges . stone coated metal roofing tile manufacturer
5 Gloss: aluminum windows and doors opening to avoid bubbles optional surface ( white dots ) and ash ( black spots ) , as well as cracks, burrs , peeling and other obvious defects profiles. stone coated metal roofing tile
6 degree of oxidation : the oxide film thickness of 10 microns. When you purchase may be scratching the surface of the profile look to see whether the surface of the oxide film can be erased .
1 Thickness: aluminum sliding doors , 70 series, 90 series of two kinds , residential interior aluminum sliding doors with 70 series can be. Series number indicates the thickness of the door frame structure dimensions in millimeters . Aluminum sliding windows , 55 series, 60 series, 70 series , 90 series of four. Series selection should be based on the size and the local wind pressure or windows depending on the value . As a closed veranda aluminum sliding windows should not be less than 70 series. stone coated metal roofing tile
(2) Strength : Tensile strength should reach 157 Newtons per square millimeter , the yield strength to reach 108 Newtons per square millimeter . When you purchase , you can hand moderately curved profiles, let go after the state should be able to recover . stone coated metal roofing tile supplier
3 Color : Same color should be consistent with an aluminum alloy , such as color obviously , that should not be optional . stone coated metal roofing tile factory
4 Flatness: Check the aluminum alloy surface , there should be no dents or bulges . stone coated metal roofing tile manufacturer
5 Gloss: aluminum windows and doors opening to avoid bubbles optional surface ( white dots ) and ash ( black spots ) , as well as cracks, burrs , peeling and other obvious defects profiles. stone coated metal roofing tile
6 degree of oxidation : the oxide film thickness of 10 microns. When you purchase may be scratching the surface of the profile look to see whether the surface of the oxide film can be erased .
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