It is suitable for injection molding of engineering plastics such as PC, POM, PA, and PBT, enabling the stable production of products with special properties such as high strength, resistance to high and low temperatures, and chemical corrosion. For the problems that engineering plastics are prone to, such as stress cracking, shrinkage marks, and uneven crystallization, by optimizing the mold cooling and process parameters, the product size accuracy and mechanical performance can be ensured to meet the standards. It is widely applied in fields such as electronic connectors, structural components, gears, etc.