Alloy Steel Precision Casting ZG45Mn mainly used in Auto machine manufacturing industries.Alloy steel is added other elements in addition to iron, carbon.

Alloy Steel Precision Casting ZG35SiMn mainly used in Auto machine manufacturing industries.In the base of ordinary carbon steel and are added amount of one or more alloying elements ,then form the iron-carbon alloys.

Alloy Steel Precision Casting ZG20SiMn mainly used in Auto machine manufacturing industries.In the base of ordinary carbon steel and are added amount of one or more alloying elements ,then form the iron-carbon alloys.