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