| 摘要 |
<p>The element (200) has a U-shaped profile part (210) inserted into U-shaped wall rails and made of metal. Recesses (250.1, 250.2, 260.1, 260.2) are arranged at two sides of the U-shaped profile part in such a manner that the recesses are in engagement with a projection in the wall rail. The recesses are arranged at distance from each other such that grid dimension is continued along the wall rails. A threaded hole is arranged at sides of the U-shaped profile part such that the connection element faces opposite to the threaded hole when the connection element is inserted into the wall rails.</p> |
