... cutting, grinding, polishing, molding and coating. We are exporters of optical lenses for industrial and commercial use. Our chief products are ... lenses with diameter from 1.0mm to 300mm by optical glass or optical crystals, such as BK7, fused silica, CaF2. Our standard ... quality: 60/40 40/20 scratch/dig Bevel: 0.25mm x 45° Coating: uncoated or coated upon requestsWe supply standard lens ...