| 摘要 |
<p>A releasable plug (1) for sealing an open end of a fluid bearing pipe (17) having at its open end (17a) an inwardly directed flange (18) formed upon cutting an end of said pipe, said plug (1) including a plug body, an annular recess (16) formed in the body which engages said flange, and sealing means (7) which frictionally engages an inner surface of said pipe thereby providing a pressure seal for said pipe (1).</p> |
