This paper discussed the manufacture procedure of seamless steel pipe for high - pressure gas cylinder.

论述了高压气瓶用无缝钢管的制造及其生产工艺。

youdao

This paper discussed the manufacture procedure of seamless steel pipe for high - pressure gas cylinder.

论述了高压气瓶用无缝钢管的制造及其生产工艺。

youdao