| 摘要 |
<p>An assembly of a frame and rods, in wood or steel, is movable and can be fitted to trailer platforms to hold the load, which remains visible to the driver. The fixing can include comb teeth below and a locking system. These frames can be supported on ring supports of any polygonal shape. The construction also gives ventilation which is required by some loads. The frame sides are bent to press on the sides of the platform. The frame also has straps of sheet steel or wood.</p> |
