This company mainly produces electronic equipment of high quality such as every type of colored optical glass, colorless optical glass, (ray) Filter
, (color) Filter
, heat insulation glass, quartz glass, infra-red glass, near-infra-red glass, ultraviolet glass, ultraviolet black glass, neutral gray glass, orange glass, green glass, yellow glass, band-pass Filter
, filter specially used by automatic money counting machine and so on. Mainly used in photographic equipment, instruments and meters, optical instruments, medical instruments, teaching instruments, slide projector, projection apparatus, ultraviolet analytical instruments, financial tools, airport lights and so on. Specialized services in the national defence, aerospace, medicine and biology scientific research institutions and public...