| 摘要 |
<p>The ring has a metallic base body (1), and a sealing layer (2) lying on the base body, where the sealing layer is made from PTFE, graphite, aluminum or silver. The base body has a profile with ridges (3) in an area that is turned away from the sealing layer, where a part of the ridges is completely covered by the sealing layer. The base body has an outer-lying section (4) in the area covered by the sealing layer, where the section extends from an outer edge of the sealing layer over 10 percentages of breadth of the sealing layer and has height that is smaller than the ridges.</p> |
