14 alloy 54 pcs, palm material, wheel head material is 2 0 C r N i Mo It has better quenchability, tempering and tempering, thermal treatment and table and adding carbon to achieve better results, with high toughness, high strength and high wear resistance Alloy: Using 10 diamonds of high-purity ultra-coarse tungsten carbide particle alloy, it has good impact toughness, wear resistance and corrosion resistance