The molding material according to different Renshou injection molds, dies and molds can be divided into non-metallic mold. Metal mold is divided into: casting mold (non-ferrous metal die-casting small plastic injection molds, steel casting), and forging dies, etc; non-metallic mold is also divided into: plastic mold and inorganic non-metallic mold. The mold itself according to the different material, the mold can be divided into: sand mold, metal mold, vacuum mold, die and the like paraffin. Wherein the injection mold machine, with the rapid development of polymer plastic, plastic mold and people's lives are closely related. Plastic mold can generally be divided into: injection mold, extrusion mold pvc plastic injection mold, gas-assisted mold and so on. Mold cooling system: Uniform Division cooling, improve product quality and efficiency of the mold. 2. Post-processing: nitrogen [nitriding temperature is low, the deformation is small, no longer the need for quenching high surface hardness (greater than HV850) and wear] 3 die life: in normal use of the mold 150 million times more about injection molds, Chang Tong Technology (online consultation), RenShouXian injection mold provided by Chang Technologies. Chang Tong Technology Co., Ltd. (www.ctmould.cn/) is Zhengzhou, plastic leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Chang Technology leadership with the staff warmly welcome all inquiries negotiations to create Chang Technologies better future.