Glass envelopes (including bulbs and tubes); open, and glass parts thereof, without fittings, for cathode-ray tubes

HS code 701120 covers the production and trade of glass envelopes, including bulbs and tubes, as well as open glass parts without fittings, for use in cathode-ray tubes. This industry plays a crucial role in the electronics and display manufacturing sectors, providing essential components for a wide range of devices such as televisions, computer monitors, and other CRT-based technologies. As the demand for these products continues to evolve with advancements in display technology, understanding the dynamics of this industry is important for businesses involved in the import, export, and distribution of these specialized glass components.

The production of glass envelopes and parts for cathode-ray tubes typically involves a multi-step process. First, the raw materials, such as silica sand, soda ash, and other additives, are carefully measured and melted in a high-temperature furnace to create the desired glass composition. The molten glass is then formed into the desired shapes, such as bulbs or tubes, using techniques like blowing, pressing, or drawing. Finally, the glass components undergo various finishing processes, including annealing, coating, and quality inspection, to ensure they meet the necessary specifications for use in cathode-ray tube applications.

The main inputs required for the production of glass envelopes and parts for cathode-ray tubes include high-quality silica sand, soda ash, and other mineral additives to create the desired glass composition. Additionally, specialized machinery and equipment, such as glass-forming machines, annealing ovens, and quality control instruments, are essential for the manufacturing process. Skilled labor, including glass technicians and engineers, is also a critical input for this industry.

The primary output of HS code 701120 is glass envelopes, bulbs, and tubes, as well as open glass parts without fittings, for use in cathode-ray tubes. These components are then consumed by manufacturers of 852810 television receivers, whether or not incorporating radio-broadcast receivers or sound or video recording or reproducing apparatus and 852841 monitors and projectors, not incorporating television reception apparatus, who incorporate them into their final products. The glass components produced under this code are essential for the functioning of CRT-based display technologies, which remain an important part of the electronics and entertainment industries.