| 摘要 |
"IMPROVED INTEGRAL JOINT FOR CONNECTING TWO PIPES" Integral joint for connecting two pipes, in which from the annular edge of the female pipe an internal flaring with decreasing cross-section extends, which gets engaged, with interference, with a corresponding external counter-flaring provided on the end portion of the male pipe nearby the overhanging back shoulder of the latter, in order to create another tight, all-metal sealing with interference, additionally to the other tight sealing already existing at the front end of said end portion of the male pipe.
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