1.Raw material: Borosilicate glass, Pyrex, Borofloat, Optical glass. Crystal glass 2. Processing: by Molding, Grinding, Polishing 3. Surface quality: optical surface quality and well controlled tolerance 4. Inside quality: clear and transparent, no mold marks, no inside bubble and dirts, 5. Function: Guide of the light beams e.g. Fresnel lens, Plano lens, Bi convex lens, Bi concave lens, Prism, Cylindrical lens, Ball lens, Spherical lens, Aspheric lens, Meniscus lens,glass lens,optical lens,auto lens 6. Application: Lighting system, Electronics, Electrical apparatus, Industries, e.g. Lamp cover, Lamp shade, Stage lens, LED lens, Reflector lens, Sight lens, Front lens, Refractor, Molded lens, Spot lens, Lighting shade, Lighting cover,glass cover,glass shade,glass sheet