1. 38CrMoAl (41CrAlMo7)- nitride steel, after heat treatment has good wear resistance, corrosion resistance and high torque properties.
2. The easy wear area of the screw can also be sprayed with bimetal to increase wear resistance.
3. For high filling, high wear, high corrosion working environment, can provide different applications of alloy barrels
4. For high filling, high wear, high corrosion working environment, you can use better steel to make screws
