... 2.Base material:38CrMoALA; Lucheng screw machinery factory PP PE plastic extruder machine pin screw barrel About lucheng : We ,Lucheng screw ... treatment, alloy coating spraying, heat-treatmentAppliance: PVC, PP, PE, PA, PC, ABS, AS etcDepth of Nitrated Layer: 0.40-0. ... Materials38CrMoAlA (JIS SACM645)SKD61 .etcApplication PS,HIPS,ABS,SAN,EPN/LDPE,HDPE,UHMPE,EVA,PP,PVC,PMMA,POM,PAST,PET,PBTNitride ...