Thread type filter used by water-collecting well and used for obtaining water near river
The utility model relates to a thread type filter used by a water-collecting well and used for obtaining water near a river. An existing filter for obtaining the water near the river is mostly prefabricated by adopting cement, and is large in machining difficulty and construction difficulty, low in...
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Main Authors | , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
26.06.2013
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Subjects | |
Online Access | Get full text |
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