| 摘要 |
<p>The device has an abrasive agent (22) having a compressible inner body (32) formed with an inner abrasive contour (28) and a compressible outer body (34) formed with an outer abrasive contour (30). The compressible outer body adjoins the dimensionally stable counter bearing body with its outer edge (38) deviated from the outer abrasive contour. The compressible inner body and the compressible outer body are connected with each other materially into one piece by a connection portion (36).</p> |
