| 摘要 |
<p>The fence has osts (1,2) fixed to the ground, between which is fixed a closure rail (13) or trellis. The posts are made in two pieces, the block and the tubular riser (5). The latter is closed at the top end (6) and has, at its bottom end, a base plate (7) pierced with holes (8) to take threaded rods (9) whose heads are buried in a block (10). One of the faces of the riser has stub tubes (15) welded to it to take the larger diameter rail tubes (13) and the riser can be changed for one with a fixing suitable for a trellis.</p> |
