| 摘要 |
<p>1. Expansible dowel made of plastics material comprising a substantially cylindrical dowel body which has at least along a part of its length lamella formed by notches in which respect the notches stand perpendicular to a plane extending parallel to the longitudinal axis of the dowel and are inclined to the longitudinal axis of the dowel, characterised in that the inclination of two neighbouring notches (3, 4, 13, 14) is of different magnitude.</p> |
