一种方法是使用空心坯，然后使用固定或浮动芯棒。
One way is to use a hollow billet and then use a fixed or floating mandrel.
提出了小型无缝钢管生产机组选用半浮动芯棒连轧工艺的优势。
Advantages of employment of semi-floating mandrel mill to produce small and medium tubes are elaborated.
提出了小型无缝钢管生产机组选用半浮动芯棒连轧工艺的优势。
Advantages of employment of semi-floating mandrel mill to produce small and medium tubes are elaborated.
应用推荐