Raw or semi-worked rubber, gutta-percha, gum, asbestos and mica; plastics in extruded form for use in further manufacturing; packing and insulating materials; flexible hoses, not of metal; flexible non-metal pipes, tubes, hoses, and fittings therefor, and valves of rubber or vulcanized fiber therefor; packing material for forming seals; waterproof sealants and fillers for expansion joints; insulation materials and barrier articles and materials, namely, polyurethane film for use as a moisture...