| 摘要 |
The assembly (1) has first, second and third functional layers (2, 3, 14) fixed to one another at a fixing point. The first and third functional layers are partially engagement with a free edge sectional region (6). The engagement of the sectional region is formed at the fixing point relating to a thickness extension of the second functional layer. An undercut region is formed as a step portion (10) with an extendable intersection layer, which is removed from the first and third functional layers. The undercut region includes a sectional region partially formed in cone-shape. |
