... GB, ABNTAvailable Size: Engineering steel: size 50×50mm-650×650mm.Tool, die & mold Steel: size 50×50mm-650×650mm (D2 ... flat steel, square steel, die steel, spring steel, carbon tool steel, stainless steel, alloy steel, high speed steel, carbon ... steel, steel bar, steel rod, stainless steel.The product one hand are applied in machine facture, petrochemical, automobile,communication, transportation, ...