| 摘要 |
<p>The sheet (2) has parallelepiped reliefs (13) provided on sidewalls (11, 12) of ribs (5), where the sheet is connected to another sheet. The reliefs are located in a covering area (Z) of the sheets, where the covering area has flattened portions (14, 15, 16) oriented toward one of the sheets. The covering area has a width in the range between 5 mm and 50 mm. The reliefs are formed in a metallic band, where the sheets are rectangular or square in shape. An upper face (7) of each rib is provided with a longitudinal groove (8). An independent claim is also included for a method for fabrication of a sheet.</p> |
