| 摘要 |
A profiled bar (1) comprises two flanges (2, 3) and an interconnecting web (4) secured to the flanges. The web (4) has recesses (5, 6) alternatively facing either side of the profiled bar (1). It is formed by bending a flat material, so that it exhibits no sharp corners or edges. The flanges (2, 3) are secured to both longitudinal edges of the web (4) over their entire length and without interruption. |
