The automatic control system of circular seam welding 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。
The invention discloses a circular seam welding machine for fixed pipes, which relates to the improvement on circular seam welding 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。
The company can also design and manufacture all kinds of specialized welding machines, such as automatic longitudinal seam welder, circular seam welder etc.
本公司还可为用户设计，生产各类纵缝自动焊机，环缝自动焊机等专用焊接设备。
The company can also design and manufacture all kinds of specialized welding machines, such as automatic longitudinal seam welder, circular seam welder etc.
本公司还可为用户设计，生产各类纵缝自动焊机，环缝自动焊机等专用焊接设备。
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