... our customers a long list of products and services: - Optical Lens in all index 1.499, 1.56, 1.60, 1.61 ... choice for the customers at home and abroad. All our lenses complied with FDA standard, and also approved CE standard, which ... Town, Dan yang, Jiangsu, China Main featuresCR-39 RX optical lens1.Index:1.56,1.492.Dia:65/70/72mm3.Monomer:PPG4 ...