durable aluminium Doors And Windows

The thickness, strength and oxide film of aluminum doors and windows used for high-quality aluminum alloy doors and windows should comply with relevant national standards. The wall thickness of the main force-bearing members of aluminum alloy windows should be more than 1.4 mm, the wall thickness of the main force-bearing members of aluminum alloy doors should be more than 2.0 mm, the tensile strength should reach 157 Newtons per square meter, and the yield strength should reach per square...