PET آلة زجاجة في مهب اسطوانة واحدة المسمار

Single screw & barrel for single-screw extrusion machine Screw Diameter : D15mm~D360mm Application : BOTTLE Plastic processed :PET 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...