Steel structure Standard GB ,AISI , ASTM , BS, JIS ,CE (DIN18800) Type light / heavy CommoditySteel structure SpecificationsStandard ISO 9001 : 2008 , GB ,AISI , ASTM , BS, JIS ... ‘s designType light / heavy Using workshop, steel walkway and floor , steel structure platform ,steel fabricated house ,frame part ,steel structure bridge, warehouse Surface galvanized , painted Technology Resistant ...