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 technology sectors, providing essential components for various devices such as televisions, computer monitors, and other CRT-based products. The global demand for these glass components remains steady, driven by the continued use of CRT technology in certain applications and the need for replacement parts.

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 at high temperatures to create the desired glass composition. The molten glass is then formed into the required 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 polishing, to ensure the desired properties and quality.

The main inputs required for the production of HS code 701120 items include high-quality silica sand, soda ash, and other mineral additives to create the specific glass formulation. Additionally, specialized machinery and equipment, such as glass-blowing machines, annealing ovens, and polishing tools, are essential for the manufacturing process. Skilled labor with expertise in glass production and processing is also a critical input for this industry.

The primary output of HS code 701120 is glass envelopes, bulbs, and tubes for use in cathode-ray tubes (CRTs). These components are then consumed by manufacturers of 851221 Television receivers, 852841 Monitors and projectors, not incorporating television reception apparatus, and other CRT-based display devices. The glass parts produced under this code may also be used in the production of 701990 Other articles of glass, n.e.s., such as specialized glass components for various industrial and scientific applications.