38 CrMoALA nitriding single screw barel for plastic extruder 1.Custom Production 2.Quality Material Used ... ABS Extruding Machines Screw Barrel/38 CrMoALA nitriding single screw barel for plastic extruder Screw barrel manufactured with high-quality nitro ... different functions.Materials38CrMoAlA (JIS SACM645)SKD61 .etcApplication PS,HIPS,ABS,SAN,EPN/LDPE,HDPE,UHMPE,EVA,PP,PVC,PMMA,POM,PAST ...