ICNEAClass

ICNEA 3971—Electronic vacuum device manufacturing

Class · Industrial Classification for National Economic Activities (GB/T 4754-2017) (GB/T 4754-2017)

Where 3971 sits

  1. C Manufacturing industry
  2. 39 Computer, communications and other electronic equipment manufacturing industry
  3. 397 Electronic device manufacturing
  4. 3971 Electronic vacuum device manufacturing

What 3971 includes

  • Refers to the manufacture of electronic thermion tubes, cold cathode tubes or photocathodes, and other vacuum electronic devices, as well as electronic tube parts.
  • Including manufacturing activities for the following electronic vacuum devices:
  • Tube;
  • Receiving amplifier tube: direct heating type small tube, side heating type small tube, frame grid small tube, ultra-small tube, eight-pin tube, thumb tube, other receiving amplifier tube;
  • Microwave tube: magnetron, klystron, microwave gas discharge tube, traveling wave tube, return wave tube, noise tube, lighthouse tube, antenna switch tube, other microwave tube;
  • Transmitting tube: small and medium-power transmitting tube, high-power transmitting tube, modulation tube, other transmitting tube;
  • Stabilizer tube: stabilizer tube, stabilizer tube, other stabilizer tube;
  • Ion tubes: thyristor, discharge tube, ion counting tube, cold cathode trigger tube, ultraviolet light sensitive tube, other ion tubes;
  • Electron beam tube;
  • Picture tube: color picture tube, black and white picture tube, other picture tube;
  • Display tube: color data/graphics display tube, black and white data/graphics display tube, radar display tube, other display tube;
  • Projection tube, monitoring tube, oscilloscope tube, storage tube, pulse forming tube, flying point scanning tube;
  • Other electron beam tubes;
  • Ray counting tube;
  • Vacuum switch tube: high and medium voltage vacuum switch tube (3~36kV), low voltage vacuum switch tube (below 3kV), other vacuum switch tube;
  • Vacuum electronic device parts: picture tube parts (color picture tube, electronic gun parts, color picture tube glass shell, shade mask for color picture tube), electronic tube parts, other vacuum electronic device parts;
  • Other vacuum electronic devices: vacuum fluorescent display device (VFD), vacuum tube, frequency standard tube, other vacuum electronic devices not specified;
  • The following product manufacturing activities are included in this category;
  • Special purpose vacuum devices.

3971 in other systems

ANZSICAustralia · New Zealand
NACEEuropean Union
SICUnited States (legacy)

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