| 摘要 |
<p>The device comprises two elongated fasteners, each of which contains a hole in one end for locating a bar for tensioning the guard, at least two holes for locating a bolt or similar component and a threaded part for securing a rod inside a hole. The fasteners are arranged parallel, one of top of the other, when secured to the railing. The device also has two nuts for securing to the threaded part.</p> |
