| 摘要 |
A wall bead (10) comprising a central longitudinally extending portion (13), a first elongate flange (11), and second elongate flange (12) which extend longitudinally of the bead, and which separately comprise a front and rear surface. The wall bead (10) further comprises a plurality of teeth (16) disposed upon the first and second flange at longitudinal positions thereon,wherein the teeth are directed away from the respective flange, substantially forwardly of the respective flange, along a common direction that is along the wall bead. |
