Afterwards, a steelmaking procedure which can produce free-cutting steels with high strength has been induced.

并提出了生产高强度易切削钢的工艺方法。

youdao

Afterwards, a steelmaking procedure which can produce free-cutting steels with high strength has been induced.

并提出了生产高强度易切削钢的工艺方法。

youdao