برغي وبرميل للبرغي الطارد / البرغي الطارد المفرد

                                  Screw and barrel for extruder Diameter                          50~60mm   Materials 38CrMoAlA (JIS SACM645) 42CrMo(JIS ACM440)SKD61  Application PE PP Nitride Hardness 1000-1100HV Nitride Brittleness ≤Grade One Surface Roughness Ra0.4um Screw Straightness 0.015mm Alloy Hardness HRC68-72 Alloy Depth 0.5mm-0.8mm Heat-Treatment Nitrided Bimetallic Packing Wrapped up by film in wooden ...