www.joyetv.com

extruder conical screw and barrel for PVC pipes

123

extruder conical screw and barrel for PVC pipes

  Hardness After Hardening&Tempering HB280-320 Nitride Haedness HV850-1000 Nitride Brittleness  >=Grade Two Surface Roughtness Ra 0.4 Screw Straightness 0.015mm Alloy hardness HRC50-65 Alloy depth 0.8-2.0mm Surface Chromium-Plating’s Hardness  After Nitriding…