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Glass envelopes (including bulbs and tubes), open and glass parts thereof, without fittings, for electric lamps and light sources, cathode-ray tubes or the like

701110 Glass envelopes (including bulbs and tubes); open, and glass parts thereof, without fittings, for electric lighting 701120 Glass envelopes (including bulbs and tubes); open, and glass parts thereof, without fittings, for cathode-ray tubes 701190 Glass envelopes (including bulbs and tubes); open, and glass parts thereof, without fittings, other than for electric lighting and cathode-ray tubes