Research status and developing prospect of spot welding butt strip is systematically introduced in this paper.

系统地介绍了点焊拼接板的研究现状和发展前景。

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DN horizontal pneumatic spot welder is the special equipment designed for welding venturi and is mainly used for butt joint of such work pieces as venturi.

型卧式气动点焊机是为焊接文氏管而设计的专用设备，主要用于文氏管或类似工件的焊接。

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