Generally speaking, CPM3V, as a kind of powder steel with high comprehensive properties, has good wear resistance, excellent fatigue resistance and fracture resistance. Its greatest advantage is its excellent toughness under high hardness, which is beyond the reach of most powder steels. Therefore, CPM3V is also adopted by many straight knife manufacturers, and it is an excellent outdoor steel.

M390, powder stainless steel produced by Austrian Egret. Originally used as die steel. Later, Yangjiang became more popular, and now it is more popular. It is called "Shenzhen-Hong Kong".