| 摘要 |
<p>A metal wall framing section (1) comprising top (3) and bottom (5) tracks and studs (7), each formed of sheet metal, the top track (3) comprising a downwardly facing outer channel (15) and an upwardly facing inner channel (21) nested in the outer channel (15) and forming therewith a box beam for taking the load of roof trusses (T) bearing on the top track (3) between studs (7).</p> |
