(Ethylene-propylene – copolymers) E6 Ethylene-tetrafluorethylene – copolymers E7 Polypropylene V V2 V3 V4 V5 X Z Z1 Ethylene-vinylacetate – copolymers braiding of glass fibre wrapping of glass fibre mineral insulation chloroprene-rubber (or equivalent material) special compound of chloroprene-...