Extrusion aluminium alloy profile for roof building 1)Material:aluminum alloy 2)Standard:GB 5237-2008 3) ... high-quality Extrusion Aluminium Alloy Profile For Roof Building 1)Alloy No.:60632)Temper:T53)Surface Treatment:1,Powder ... special shaped profile, special shaped scraper profile, curtain wall profile, building roofing profile, finned tube profile, general profile and others6)Certificates ...