... steel coil 1)Fireproof,heat preservation 2)Sound isolation and duration 3)Easy to install 4)Rich color Galvanized steel ... for prepainting, used in construction, white goods, transportation, automobile, stationery, and dail life commodity. Surface:chromated, unoiled, regular spangle, tension leveled ... -1.20mm,for thickness 0.30mm and blew,the relevant width is 1000mm and 1200mm,for thickness 0.37mm to ...