1998年6月成为国家铝质加工机械行业的行业标准起草人。

Become the professional standard drafter of national aluminum processing machine industry in 1998.

youdao

1998年6月成为国家铝质加工机械行业的行业标准起草人。

Become the professional standard drafter of national aluminum processing machine industry in 1998.

youdao