摘要 |
<p>The insertion part (1) has upper and lower outer layers (4,10) connected with each other along the lateral circulating edge of the air-distributing layer (2). The flange of a section (8) of the ring-shaped components (5) is held uncovered by the lower outer layer. A heating installation (3) is arranged between the air-distributing layer and the lower outer layer. An independent claim is also included for an assembly with two insertion parts which are connected with each other along a side edge.</p> |