Different plastic materials have other molding processes, including injection molding, extrusion molding, suction molding, blow molding, calendering molding, foaming molding, plastic lining, dip molding, and so on. The following introduces the working principle and suitable plastic material of these forming methods. 1. Injection Molding It is an injection molding method. With the development of the economy, people have higher requirements for product quality in industrial