Specifications:
Diameter: ø15mm up to ø300mm;
Max. length: ≤ 10000mm
1.Material: 38CrMoAI A
Nitriding treatment, Surface hardness: HV≥900
Nitriding depth: 0.5-0.8mm
2.Material of barrel inside layer: Tungsten alloy.
Surface spraying, prolong life of screw
