... Product Description 1. Raw material: Borosilicate glass, Pyrex, Borofloat, Optical glass, Crystal glass2. Processing: by Molding, ... , flat lens, round lens, Optical lens, Glass lens,Pattern lens,lens6. Application: Lighting system, ... Sight lens, Front lens, Refractor, Molded lens, Spot lens, Lamp cover, Lamp shade, Lighting shade, Lighting cover, glass cover, glass shade, glass sheet.Sight glass,glass ...