介绍了一种新的冶金结合复合钢管制造工艺及工业应用情况。

A new manufacture process and application instance of metallurgy integrated complex steel pipe is introduced.

youdao

介绍了一种新的冶金结合复合钢管制造工艺及工业应用情况。

A new manufacture process and application instance of metallurgy integrated complex steel pipe is introduced.

youdao