介绍了用精整锰硅粉生产低磷中碳锰铁的实验。

This experimentation is to produce low phosphorus medium carbon ferromanganese with resettled silicon-manganese powder.

youdao

介绍了用精整锰硅粉生产低磷中碳锰铁的实验。

This experimentation is to produce low phosphorus medium carbon ferromanganese with resettled silicon-manganese powder.

youdao