برميل برغي مزدوج مخروطي ثنائي المعدن للبلاستيك المعاد تدويره

Conical Screw & Barrel Screw Diameter : 45/90mm 55/110mm 65/130mm Application : PVC water pipe. drainage pipe. Plastic processed : PVC (recycled plastic) 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...