| 摘要 |
1. Tube, which is of insulating material of a mixed laminate and manufactured in a filament-winding process and the wall of which consists of a layer (1), which is built up of polyester fleece and forms the inward surface (2), with a layer (3), which is built up of glass rovings and lying thereover, wherein resin-impregnated fleece and resin-impregnated rovings are brought one after the other in the cold state onto a winding mandrel and cured by subsequent heating, characterized thereby, that the tube wall contains a further layer (4), which forms the outward surface (5) and is polyester rovings wound directly adjoining the glass rovings. |
