Injection molding is a commonly used plastic processing technology, which uses an injection molding machine to inject heated and softened plastic material into a mold, and solidifies the plastic material into shape through the pressure and cooling of the mold. This process can manufacture plastic products of various shapes and sizes, such as electrical casings, plastic cups, plastic storage boxes, etc. The advantages of injection molding technology are fast molding speed, high precision, stable product size, and suitability for large-scale production.