With the rapid development of the automobile industry, injection molding has developed into one of the most important technologies for the production of automotive plastic parts, such as fans, fenders, bumper, dashboard, doors etc.

Gas Assisted Injection Molding, which is short for GA IM, also known as Air Mould, is a new molding process developed on the basis of traditional injection molding. In recent years, GA IM, because of its low filling pressure, small product stress with smooth surface, has become an important processing method in plastic prototype industry.