1. Material: 38CrMoAI A
Nitriding treatment, surface hardness: HV≥900
Nitride layer depth: 0.5-0.8mm
2. Material: The base material is 38CrMOAIA A. The surface of the screw edge is made of double alloy pour welding, which effectively improves the life of the screw.
3. Material: Base material 38CrMOAIA A. The wear-prone part of the material port is made of imported alloy steel. After special treatment, it can effectively improve the wear resistance of the barrel and extend its service life.
