Detailed Product Description 1.Raw material: Borosilicate glass, Pyrex, Borofloat, Optical glass. Crystal glass2. Processing: by Molding, Grinding, Polishing3. ... lens, Aspheric lens, Meniscus lens,round lens, flat lens,glass sheet,glass lens,optical lens6. Application: Lighting system, Electronics, Electrical apparatus ... Molded lens, Spot lens, Lighting shade, Lighting cover,glass cover,glass shade