| 摘要 |
<p>A motor vehicle pipeline (1) particularly resistant to alcoholic medium, consists of polyamide pipe (2) with an internal seamless coating (3), thin compared with the pipe wall thickness, consisting of a polyolefine bonded to the polyamide pipe in the course of co-extrusion. The thickness (D) of the pipe (2), which is preferably of polyamide 12, is 1.0 to 2.5 mm, while the thickness (d) of the coating (3), which has been exaggerated, is 0.1 to 0.2 mm, and the pipe material preferably contains a softener so that the combined pipe and coating can be handled like a hose. <IMAGE></p> |
