17
Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes; plastics in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, not of metal.
plastic semi-worked products, namely, semi-worked synthetic plastic and synthetic resins as semi-finished products in the form of pellets, beads, rods, bars, pipes, tubes, boards, plates, sponges, foams, tapes, strips, foils, films, sheets and fibers; heat insulating materials of synthetic plastic and synthetic resins as semi-finished products in the form of pellets, beads, rods, bars, pipes, tubes, boards, plates, sponges, foams, tapes, strips, foils, films, sheets and fibers
19
Building materials (non-metallic); non-metallic rigid pipes for building; asphalt, pitch and bitumen; non-metallic transportable buildings; monuments, not of metal.
non-metal building materials, namely, synthetic plastic and synthetic resins for building in the form of pellets, beads, rods, bars, pipes, tubes, boards, plates, sponges, foams, tapes, strips, foils, films, sheets and fibers; non-metal building materials, namely, heat insulating materials of synthetic plastic and synthetic resins as building parts in the form of pellets, beads, rods, bars, pipes, tubes, boards, plates, sponges, foams, tapes, strips, foils, films, sheets and fibers