Our company mainly produces electronic equipment of high quality such as every type of colored optical glass, colourless optical glass, (ray) filter, (colour) filter, heat insulation glass, quartz glass, infra-red glass, near-infra-red glass, ultraviolet black glass, neutral gray glass, orange glass, green glass, yellow glass, band-pass filter, and filter specially used in automatic money counting machine. Our products are mainly used in photographic equipment, instruments and meters, optical instruments, medical instruments, teaching instruments, slide projectors, projection apparatus, ultraviolet analytical instruments, financial tools, stage lamp-lighting, touching screens, buttons of lifters, and airport lights. We also provide special services in the national defense, aerospace, medicine and biology scientific research institutions and public security units.