Full hard screw feeding tube imported Japanese injection molding machine dedicated special high-speed steel, the overall secondary quenching and tempering process. Particularly suitable for high corrosion products processing requirements to ensure wear resistance, corrosion product needs. HPT1: vacuum hardening, HRC56 ~ 61, applied to nylon, PVC, PC, polyacetal resins, lenses, transparent shell, cosmetic containers, transparent acrylic, polycarbonate resins and the like. HPT2: 0 vacuum hardening, HRC56 ~ 61, high temperature resistance, high-speed, suitable for Bakelite, PC + glass fiber, magnetic powder, ceramic powder, aluminum and magnesium powder, iron, electric injection molding machines. HPT3: vacuum hardening, HRC56 ~ 61, wear resistance, corrosion resistance, high pressure resistance, high speed. If you like long fingers, how to meet the different needs of users? Jinxin never compared to just break their own people! We have been working hard! Every year, every day, we are making progress! We lead, others follow. Jinxin - to create a new era of Chinese runner. Production falters ------ Select Jinxin try? Give me a trust, but also you very responsibility! National free hotline: 4000-822-881 call us: Miss Wei 133 4296 3865 0755-27188830 NOTE: Because of the different needs of each product, so the product specifications also vary. If interested, call the company directly, the company will have professionals to serve you