Drainage tube
The utility model provides a drainage tube, including inner tube and outer tube, be equipped with a plurality of drainage through -holes on the lateral wall of the front end of inner tube, the front end of outer tube seals, be equipped with a plurality of through -hole flushing on the lateral wall o...
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Main Authors | , , , , |
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Format | Patent |
Language | Chinese English |
Published |
03.05.2017
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Subjects | |
Online Access | Get full text |
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