摘要 |
<p>A separating joint (SJ) in a plate crosses the center of an opening, which has an internal screw thread (IST) or links a threaded neck (TN) with an IST separated into shells by the SJ. A double fitting (19) obtained by splitting has an external screw thread (20) and screws into the opening or the TN with a sealing body (5) and in the lengthwise direction of a pressure screw (8) separated in two.</p> |