| 摘要 |
A sealing sleeve ( 11 ) of the rolling boot type having a first larger, substantially cylindrical collar ( 12 ), a second smaller, substantially cylindrical collar ( 13 ), as [[a]] well as a wall portion ( 14 ) which is positioned between the collars ( 12, 13 ) and which forms at least one axially open annular fold ( 15 ) with circumferentially distributed indentations ( 18 ) in the convex curvature of the axially open annular fold ( 15 ), or with radial ribs ( 21 ) in the concave inner curvature of the axially open annular fold.
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