| 摘要 |
<p>This system is formed by an angle, fastening screw and a 'bridge-type' clamp part. The last one has a protuberance fitting into a groove in one of the bars whilst inside it one of the wedge-shaped arms of the basically T-shaped clamp fits into the other groove to which wall it is fastened by a screw. Against this external surface of the wall rests the bridge-shaped element.</p> |
