... widely used in many field.4Cr5MoSiV1 is common international hot die steel mold, the steel has excellent toughness and good ... manufacture of aluminum products with the die casting die, hot extrusion die, perforated using tools, a mandrel, forging die, plastic mould and so on ... also widely used in aluminum, copper and its alloys of die-casting molds.Specification:Round(dia 50-230mm) Flat(thickness:10 ...