Classification is different, a name is from the perspective of the hardware industry called, and the other is called from the processing of the type of stamping the name of the call. Hardware mold stamping die, stamping die also has a metal mold. Such as mechanical molds, plastic molds, building molds, is classified by industry. Forging mold, casting mold, stamping die, is classified as the type of work. Wood mold, metal mold, sand mold, is the classification of mold materials. ........ not listed one by one.