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Specifications:
Diameter: ¦µ 15mm up to ¦µ 300mm
Max.Length: ¡Ü 10000mm

1.Material: 38CrMoAIA
Nitriding treatment, Surface hardness: HV¡Ý900
Nitriding depth: 0.5~0.8mm

2.Material of barrel inside layer: Tungsten alloy
Surface spraying, prolong life of screw