| 摘要 |
<p>The device has a sheeting plate with two cover plates (1). A set of reinforcing units is arranged between the plates and closure plates are provided for covering narrow sides of the sheeting plate. A row of holes are arranged in flanges of a U-profile welded to the closure plates for intake of fastening units. Guiding plates (5, 8) are fastened to a bar of the profile for guiding the sheeting plate in the U-profile or C-profile.</p> |
