本文研究了一种新型低合金高性能高速钢d 601，其各项性能接近或略超过通用高速钢m 2。

A new type of low alloyed high speed steel with high performance, D601, was studied.

youdao

本文研究了一种新型低合金高性能高速钢d 601，其各项性能接近或略超过通用高速钢m 2。

A new type of low alloyed high speed steel with high performance, D601, was studied.

youdao