Injection molding, also known as injection molding, is a method of injection molding and molding. The advantages of injection molding method are high production speed, high efficiency, automation of operation, variety of patterns, shape from simple to complex, size from large to small, and the product size is accurate, the product is easy to update, and can form complex shape parts. Injection molding is suitable for mass production and complex shape products and other molding processing fields.