Flexible hoses, not of metal; washers of rubber or vulcanized fiber; insulators for cables; pipe gaskets; junctions, not of metal, for pipes; clutch linings; unprocessed and semiprocessed rubber substitutes, namely, synthetic rubber; unprocessed and semi-processed asbestos substitutes, namely, semi-processed synthetic resins, fiberglass for insulation; unprocessed and semi-processed mica substitutes, namely, semi-processed cellulose acetate; unprocessed and semi-processed gum substitutes, nam...