| 摘要 |
<p>The suspended ceiling frame is in the form of a grid of intersecting channel-sections. The latter each incorporates two opposite profiled side plates (13a), each with a first portion along one lengthwise edge bent into a U-shape (14), the flanges of which are at right angles to the main part of the plate. Along the other lengthwise edge is a second U-shaped portion, open towards the first. By this it is detachably supported at each end on an angle-bracket (11) fixed to a support plate at the intersection point, the bracket extending vertically and with its flanges protruding outwards from the plate.</p> |
