KUNFENGs is a big stockist of steel raw material and producer of ASTM A517 GRADE B steel plates.These steel work, steel structure and steel machining parts can be used on pressure vessel and boiler, please
All the DNV DH40 shipbuilding steel plate supplied by Shanghai Royal Industry can be certificated by Shanghai Royal Industry as per customer's request. DNV DH40 steel is a kind of high tensile strength marine steel.