steel structure workshop Standard: ASTM,BS ,GB ,JIS,DIN Material: Q345,Q235,sandwich panel,corrugated steel plate Commoditsteel structure workshop SpecificationsStandard GB ,AISI , ASTM , BS, ... ‘s designType light / heavy Using workshop, steel walkway and floor , steel structure platform ,steel prefabricated house ,steel frame part ,steel structure bridge, warehouse Surface galvanized , painted ...