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