| 摘要 |
<p>The unit has a cardboard frame (10) made of semi-rigid material and comprising internal walls (121, 131) facing each other. A hollow profiled structure element extends from one of the walls to the other wall and is made of aluminum. Support ends (22) comprise a coupling part and a co-operation part and are made of plastic. The coupling part is coupled with the former wall. The co-operation part is co-operated with an end of the structure element in fitting manner. The coupling part is formed with a plate. The co-operation part is formed with a protrusion forming element.</p> |
