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Junctions, not of metal, for rigid pipes; Non-metal fittings for flexible compressed air pipes; Non-metal flexible tubing; Non-metal weather strips for buildings; Pipe gaskets; Plastic tubes for protecting electrical wires and milking machines; Reinforcing materials not of metal for pipes; Rings of rubber for use as pipe connection seals; Watering hose; Waterproof sealants; Flexible plastic pipes for plumbing purposes