| 摘要 |
<p>Fence element (8, 9, 14) comprises a grid-like arrangement of connecting horizontal rods (11, 17) and vertical rods (10, 16) produced by connecting units at crossing points. The supporting surface of the rods is flat at the crossing points to produce a rotating connecting site. Preferred Features: The connecting unit is a rivet, bolt or screw and is made from high grade steel having high strength and/or hardness. The connecting unit interlocks with the rods to prevent breakage.</p> |
