31671000 – Glass envelopes and cathode-ray tubes

Glass envelopes and cathode-ray tubes code description

The category “Glass envelopes and cathode-ray tubes” encompasses two subcategories: glass envelopes and cathode-ray tubes. Glass envelopes refer to the protective glass coverings used in various electronic devices, such as light bulbs, vacuum tubes, and electronic components. These envelopes provide insulation and protection to the internal components. On the other hand, cathode-ray tubes are specialized vacuum tubes used in older television sets and computer monitors to display images. They work by emitting electrons onto a phosphorescent screen, creating the visual display. This category is relevant for suppliers and contracting authorities involved in the procurement of glass envelopes and cathode-ray tubes for electronic devices and display systems.