Detailed Product Description 1. Raw material: Borosilicate glass, Pyrex, Borofloat, Optical glass, Crystal glass2. Processing: by Molding, Grinding, Polishing3. Surface quality: optical ... , Aspherical lens, Meniscus lens, flat lens, round lens, Optical lens, Glass lens,Pattern lens,lens6. Application: Lighting system, Electronics, Electrical apparatus, Industries ...