Asbestos fibres; Cords of rubber; Ebonite; Elastic yarns, not for use in textiles; Hoses of textile material; Insulating materials; Insulating refractory materials; Plastic fibers for use in the manufacture of tire cord; Plastic substances, semi-processed; Rubber, raw or semi-worked; Stuffing of rubber or plastic; Synthetic rubber; Threads of rubber, not for use in textiles; Cords of rubber; Semi-processed natural resins; Synthetic rubber; Valves of rubber or vulcanized fiber; Valves of rubbe...