1.Material: 38CrMoAl A
Nitriding depth: 0.5-0.8mm
Nitriding treatment, Surface hardness: HV≥900
Conical (Parallel) Screw&Barrel
2.Base material: 38CrMoAI A, Special alloy is welded on the flight of screw , prolong life of screw.
3.Easy wearing parts of barrel made from anti-wear alloy can be improved abrasion performance.
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