The automatic control system of circularseamwelding process for non - rotated pipeline was developed in the paper.
建立了非旋转管道环缝焊接自动控制系统，并介绍了其系统结构和工作原理。
2
The invention discloses a circularseamwelding machine for fixed pipes, which relates to the improvement on circularseamwelding machines for large pipes.
不动管环缝焊接机是涉及大型管件环缝焊接机的改进。
3
The company can also design and manufacture all kinds of specialized welding machines, such as automatic longitudinal seam welder, circular seam welder etc.