It is the key aspect of researching and production micro-alloyed steel to draw up deformation parameter.

变形工艺的制定是微合金高强度钢开发和生产的关键环节。

youdao

It is the key aspect of researching and production micro-alloyed steel to draw up deformation parameter.

变形工艺的制定是微合金高强度钢开发和生产的关键环节。

youdao