| 摘要 |
The unit comprises at least two first and second sheet-like panels which are mutually fastened edge-to-edge. The first parts of two-part coupling devices are fastened to the two mutually opposing edge portions of the first panel. The second parts of the two-part coupling devices are fastened to the mutually opposing edge portions of the second panel. The distance between the first coupling parts associated with the first panel (10) differs from the distance between the second coupling parts associated with the second panel (20). The first coupling parts of respective coupling devices define a gap, with the gaps of the first coupling parts associated with the first panel facing towards one another. |
