... zero spangle,chromated,unoiled 250,000 tons/yearGalvanized Steel SheetCertificate: ISO9001:2000, ISO9001:2008Standard: ASTM A653, ASTMA526-90, JIS G3302, DIN EN10142-92 ... .LtdMs.Sara WangTel:86---15092856500Fax:0538---6918966 Galvanized Steel Sheet(ISO9001,Factory price)