... GB, ABNTAvailable Size: Engineering steel: size 50×50mm-650×650mm.Tool, die & mold Steel: size 50×50mm-650×650mm (D2 max ... specialized in heat-resisting super alloy, anticorrosion alloy, precision alloy, flat steel, square steel, die steel, spring steel, carbon tool steel, stainless steel ... P.C.:100121Tel:010-51201667 Fax:51201677 steel stock alloy tool steel H13 SAE 4140,4340,1045,8620,8640,1020,4320 ...