Oval tube welding tool
The utility model relates to an elliptical tube welding tool, which is characterized in that the lower end face of an elliptical base is provided with elliptical upright posts with the same shape and smaller sections, the top of the elliptical base is symmetrically provided with base bosses with ell...
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Hauptverfasser: | , , , , , , , , |
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Format: | Patent |
Sprache: | chi ; eng |
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