... products; We are the very professional manufacturer of galvanized steel strips among these factories.We own five galvanized steel strip producing ... ISO 9001:2008The main specification is as belows: Standards: GB/T 12754, JIS G 3302, ASTM A653M, Q/CHG 2-2003Grade ... Normal spangle, min-spangle, free-spangle;Usage : Building materials,Roofing, T bar, celling bar,U/ C / V channel,etc...Package : Standard ...