... plastic injection machine screw and barrel 1.Screw Diameter: 15mm-300mm 2.Material: 38CrMoAlA; SKD61; SKD11.etc. screw barrel for plastic injection molding machine We ,Lucheng ... materials, such as: PE, PP, PVC, PS, ABS, PA, POM, PC, PSV, PTFE, PR, UP, PEC, PF, VF, MP, PMMA, ... , alloy coating spraying, heat-treatmentAppliance: PVC, PP, PE, PA, PC, ABS, AS etcDepth of Nitrated Layer: 0.5-0.8mmHardness ...