Insulating materials produced from plastics; piston seals of plastics; plastic film, other than for wrapping; insulating foils; injection molding plastics; plastics materials in the form of sections (semi-finished products); unprocessed and semi-processed rubber, gutta-percha, gum, asbestos, mica and substitutes for all these materials; semi-processed plastics or resins in extruded form for use in manufacturing processes; packing, stopping and insulating materials; flexible pipes, cables and ...