| 摘要 |
The hollow profiled tube (10) has whilst retaining its outer defined diameter a reduced wall thickness compared to known tubes. The lower end area (22) of the tube has at least in some areas a cross-sectional reduction (30.1) so that the permissible gap or a smaller gap is obtained between the inner wall of the lower end area in the tapered region when the tubes are fitted, and the outer wall of the upper insert area (20) of the fitted tube. Independent claim describes scaffold frame where each vertical post is formed as a hollow profiled tube as above. |
