| 摘要 |
A sealing strip, in which each side wall (3,4) is provided with at least one projection (7,8,9,10) at least one of which has in cross-section a neck region (11, 12) and an enlarged head region (13, 14) having an arcuate surface (15, 16) to abut the flange on which it is mounted. The arrangement is such that, an attempt to remove the strip from the flange causes each rolling projection (7,8) to tend to roll into greater interference with the flange, thereby increasing resistance to the removal of the flange. <IMAGE> |
