... Q235,sandwich panel,corrugated steel plate Commodit light steel structure workshop SpecificationsStandard GB ,AISI , ASTM , BS, ... and floor , steel structure platform ,steel prefabricated house ,steel frame part ,steel structure bridge, warehouse Surface galvanized ... to cargo2, Warehouse, workshop and so on . 3,Structure & construction application .ServiceManufacture ,inspection , design ,install ...