| 摘要 |
The first of the two components (1) has two parts (11), one of which is arranged to be accommodated between the surface layer and the other component (2). The first component has a mounting (13) to accommodate an end part of the inner angular surface layer (5) on the second component (2) in such a way that this layer extends past a like part on the end part (11) of the first component (1). |
