| 摘要 |
A method of producing structural T, I, or H - section beams from one I-section beam 10 comprises cutting profiled openings 16, 18 on either side of the centre line 19, cutting along or parallel to the centre line 19, separating the two halves, and welding 21 a plate 22 to each of the cut edges to produce a pair of cellular T, I or H - section beams 20. |
