Nitride screw barrel Material selection of high quality steel (38CrMOALA) ??or chromium-molybdenum alloy steel black cross (SACM645) after quenching and tempering, shaping, forming, grinding, or spray the surface nitride alloy (bimetal), polishing process refined, with high wear resistance, anti-corrosion advantages. Technical indicators: production use: Injection molding machinery / Bakelite machinery / injection molding machinery / Bakelite machinery / extrusion machinery / blow molding machinery / blown film machinery / granulator machinery / Extrusion Machinery / Pipe Machinery / sheet machinery / mechanical wire and cable with an effective length: 12000mm nitriding depth: 0.4mm-0.7mm nitride hardness: HRC55 ° -58 ° straightness: 0.015mm-1000mm Scope: ordinary plastic, PP, PC, PE, ABS, AS, PS, PVC, PMMA, etc. 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. ------ Select Jinxin production falters try? Give me a trust, but also you are very responsibility! National free hotline: 4000-822-881 call us: 133 4296 3865 Miss Wei 0755-27188830 Note: Because the demand for each product is different, so the product specifications are also different. If interested, call the company directly, the company will have professionals to serve you