Safe anti-explosion self-sealing rotary compensator
The utility model discloses a safety type anti-explosion self-sealing rotary compensator which comprises an inner pipe and an outer pipe, one end of the inner pipe is inserted into the outer pipe, the inner pipe is sleeved with a connecting pipe, a second sealing groove is formed in the end, close t...
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Format: | Patent |
Sprache: | chi ; eng |
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