Rubber, gutta-percha, asbestos, mica and their substitutes, in the raw or semi-manufactured state; semi-manufactured products, namely plastics and resins in extruded form for use in manufacturing processes; sealing, packing and insulating materials; flexible tubes, hoses and pipes, not of metal; waterproof packaging materials, namely, waterproof packings for thermal insulation and impact protection; waterproof sealing compounds, namely, cellulose foam, coated vapor barriers, namely, laminated...