| 摘要 |
A dowel (1) comprises: i) a stem (2) with, at one end, fastening means (4) and, at the other end, an expansion cone (5); and ii) an expansion bushing (3) mounted around a portion (7) of the stem adjacent to the expansion cone and through which the expansion cone is intended to be moved so as to anchor the dowel into an anchoring hole of a supporting material. The expansion bushing is drilled with expansion holes (11) along an opening area (16) of the bushing. |
