其特点是强度高、硬度高、耐磨性好。所以，其切削加工性差，主要是刀具耐用度和加工效率均低。
It has the characteristic of high strength, hardness and good wearing ability, so it's machining capability is poor, mostly because tool's wearing and machining efficiency is very low.
其特点是强度高、硬度高、耐磨性好。所以，其切削加工性差，主要是刀具耐用度和加工效率均低。
It has the characteristic of high strength, hardness and good wearing ability, so it's machining capability is poor, mostly because tool's wearing and machining efficiency is very low.
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