1. Material: 38CrMoAIANitriding treatment,Surface hardness:HV≥900Nitriding depth:0.5-0.8mm
2. Base material: 38CrMoAlA A, a Special alloy is welded on the flight of the screw, prolonging the life of the screw.
3. Easy-wearing parts of the barrel made from anti-wear alloy can be abrasive performance.

1. Meaterial:38CrMoAIANitriding treatment,Surface hardness:HV≥900Nitriding depth:0.5-0.8mm
2. Base material:38CrMoAlA A, a Special alloy is welded on the flight of the screw, prolonging the life of the screw.
3. Easy-wearing parts of the barrel made from anti-wear alloy can be abrasive performance.

1. Meaterial:38CrMoAIANitriding treatment,Surface hardness:HV≥900Nitriding depth:0.5-0.8mm
2. Base material:38CrMoAlA A, a Special alloy is welded on the flight of the screw, prolonging the life of the screw.
3. Easy-wearing parts of the barrel made from anti-wear alloy can be abrasive performance.

1. Meaterial:38CrMoAIANitriding treatment,Surface hardness:HV≥900Nitriding depth:0.5-0.8mm
2. Base material:38CrMoAlA A, a Special alloy is welded on the flight of the screw, prolonging the life of the screw.
3. Easy-wearing parts of the barrel made from anti-wear alloy can be abrasive performance.

1. Meaterial:38CrMoAIANitriding treatment,Surface hardness:HV≥900Nitriding depth:0.5-0.8mm
2. Base material:38CrMoAlA A, a Special alloy is welded on the flight of the screw, prolonging the life of the screw.
3. Easy-wearing parts of the barrel made from anti-wear alloy can be abrasive performance.

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.