| 摘要 |
<p>A scaffolding element comprises a triangular frame having a vertical member, a horizontal member and a diagonal member and further having a yoke at the free ends of the horizontal and diagonal members. This yoke has an upper arm with an aperture therein to receive the upper end of the vertical member of an adjacent frame and a lower arm. This lower arm has a slot into which the vertical member is received below the horizontal member.</p> |
