Pipeline leakage -mending device
The utility model provides a pipeline leakage -mending device, include: first slips, second slips and set up the fixing device at the surface of the surface of first slips and second slips, wherein, the both ends of first slips are provided with first connecting piece, and the both ends of second sl...
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Hauptverfasser: | , , , , , , , , , , , |
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Format: | Patent |
Sprache: | chi ; eng |
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