| 摘要 |
In a scaffolding system in which vertical metal scaffold pipes are connected to non-vertical metal scaffold pipes by disc-shaped bridged connecting flanges, each non-vertical scaffold pipe has a wedge-shaped end portion terminated with edges which are curved at the end face of the pipe inwardly of the pipe and form together a smooth supporting surface supported against the outer wall of the adjacent vertical scaffold pipe. Each non-vertical scaffold pipe is provided with a slot in which the disc-shaped connecting flange is engaged in the assembled scaffolding. |
