Molds and tools used in industrial production for injection molding, blow molding, extrusion, die casting or forging molding, smelting, stamping and other methods to get the required products. In short, a mold is a tool used to make molding objects. This tool consists of various parts. Different molds are made of different parts. It mainly realizes the processing of the shape of the articles by changing the physical state of the formed material. Known as the "mother of industry".