• The automatic control system of circular seam welding process for non - rotated pipeline was developed in the paper.

    建立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。

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  • The invention discloses a circular seam welding machine for fixed pipes, which relates to the improvement on circular seam welding machines for large pipes.

    不动环缝焊接涉及大型管件环缝焊接改进

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  • The company can also design and manufacture all kinds of specialized welding machines, such as automatic longitudinal seam welder, circular seam welder etc.

    公司为用户设计生产各类自动焊机环缝自动焊机等专用焊接设备

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  • The only other deficiency was that the segment was not perfectly circular, due to the "free edge" of the sleeve seam which developed a slight gap, as it was not glued (see "other problems").

    唯一其他不足一部分完美通告由于自由边缘”。煤层开发了一种轻微差距因为是不胶合板(“其他问题”)。

    youdao

  • The only other deficiency was that the segment was not perfectly circular, due to the "free edge" of the sleeve seam which developed a slight gap, as it was not glued (see "other problems").

    唯一其他不足一部分完美通告由于自由边缘”。煤层开发了一种轻微差距因为是不胶合板(“其他问题”)。

    youdao

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