Fast sealing device of hair-oil crane pipe used for oil and gas recovery
The utility model relates to a rapid obturator for oil delivery crane tube used in oil gas recovery. The device comprises a crane tube nozzle and an oil gas collection pipe; and is characterized in that the obturator is provided with a negative end rapid sealing connecting hood passing through the c...
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Main Authors | , , |
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Format | Patent |
Language | Chinese English |
Published |
07.05.2008
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Subjects | |
Online Access | Get full text |
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