| 摘要 |
<p>An aerial cable duct which comprises at least one tube (3) for the installation of cables, and at least one strength element (1) alongside the tube, both embedded in a common surrounding sleeve (2), made in such a manner that the cable duct has a circular cross section; and an aerial cable duct which comprises at least one tube for the installation of cables, and at least one strength element alongside the tube, both embedded in a common surrounding sleeve, made in such a manner that the cable duct has a Figure-8 cross section, wherein the duct is made of a steel material, preferably a corrugated welded stainless steel. <IMAGE></p> |
