| 摘要 |
<p>Support (3) rests on binding screw (2), which is adjustably fastened to head (6) of the ground screw (1), using a hinged joint (4). Hinged joint is a ball joint. Binding screw is screwed in the middle of a head plate on the ground screw. It is fastened using a counter nut (5). Support is embodied as surface bearer or as fastening square. It is made of plastic.</p> |
