| 摘要 |
<p>A plate-shaped construction element comprising a frame (3, 4) that extends over a large part of said construction element, which frame (3, 4) includes recesses, and a porous material (4) that has been bonded to the frame (3, 4). The frame is a metal grid (1), for example, and the porous material (4) consists of bonded-together grains made of shredded car types, for example.</p> |
