| 摘要 |
<p>The grid (1) has a grid part (3) connected with another grid part that is made of lead and/or lead alloy. The grid part (3) and a third grid part (4) are made of plastic, and the latter grid part is arranged between the grid parts (3, 4). The grid parts (3, 4) are connected with each other in a detachable manner. The grid parts (3, 4) exhibit frames and bars (6, 9) that are connected with the frames as a single piece. The bars are arranged in a displaced manner in an elevated direction (16) of the grid parts (3, 4).</p> |
