| 摘要 |
<p>Protective cover for flexible electric cables comprises a number of cylindrical sleeves with a frustoconical end portion, which are pushed into each other. The sleeves consists of a rigid or semi-rigid plastics, pref. P.T.F.E., polypropylene, nylon (RTM) or P.V.C. The wall thickness is uniform and smaller than the bore.</p> |
