It's one of the main machines in the modern pipe mill line and formed section line.

它是现代高频直缝焊管生产线和冷弯型钢生产线的主要设备之一。

youdao

It's one of the main machines in the modern pipe mill line and formed section line.

它是现代高频直缝焊管生产线和冷弯型钢生产线的主要设备之一。

youdao