الطارد برغي واحد برميل ل pvc pp pe abs البلاستيك الطارد آلة المسمار

Single screw & barrel for PE pipe extruder Screw Diameter : 12mm~300mm Application :  film tape Plastic processed  :  PE PP Technical Parameter  Nitride Case Depth 0.5mm-0.8mm 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 Chromium Coating Thickness   0.025~0.10mm Material & Technologies  SKD61(H13) Quality 38CrMoAIA (41CrAIMo7) Gr12MoV...