Injection molding is a molding method for industrial products, which can be divided into injection molding, molding and die-casting.

Plastic injection molding is a method of plastic products. The molten plastic is injected into the mold of plastic products by pressure, cooled and molded to obtain all kinds of plastic parts. There is a mechanical injection molding machine specially used for injection molding. At present, the most commonly used plastics are polyethylene, polypropylene, ABS, PA, polystyrene, etc.