Pneumatic mechanism air compressor machine oil drain instrument
The utility model provides a pneumatic mechanism air compressor machine oil drain instrument, the positive pressure or negative pressure device comprises a cavity, cavity internal surface threaded connection has the screw rod, the end part of the screw rod is provided with and treats the hexagon hea...
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Main Authors | , , , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
09.11.2016
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Subjects | |
Online Access | Get full text |
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