... steel has excellent toughness and good heat resisitence, thermal fatigue properties and wear resistance. Belong to its high queching degree, ... , forging die, plastic mould and so on, also widely used in aluminum, copper and its alloys of die-casting molds.Specification:Round ... mould, forging mould, casting mould for aluminum, magnesium and copper and so on other. With more than 4 years' experience ...