20110265903 | TUBE-SHAPED BODY FOR CONVEYING SOLID, LIQUID AND/OR GASEOUS SUBSTANCES - A tube-shaped body for conveying solid, liquid and/or gaseous substances, including a plurality of concentrically arranged layers, where at least one layer is designed as a carrier layer, and at least two further layers are designed as strength layers, which are formed of filamentary and/or wire-shaped and/or elongate components, which each form a structure having a defined structural angle, where at least two strength layers differ in their structural angles. | 11-03-2011 |