Unprocessed and semi-processed rubber, gutta-percha, gum, asbestos, mica and substitutes for all these materials; plastics in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, not of metal; insulating tapes; glass fibre electrical insulating tapes; ballistic tapes to insulate cables; polypropylene foamed paper tapes for wrapping and insulating cables; tapes reinforced with flexible resins to protect pipes and cables; tapes of epoxy impregnated f...