Nanjing Thousand Optical Co.,Ltd.one of the original lens supplier in China, provide a full stock lens collection of 1.49 1.56 1.60 1.67 1.71 1.74, covers the design of Single Vision, Bifocal and Progressive, all the lenses are made from the most approved material of CR-39, MR-8, MR-7,etc. Our company is professional in the optical glasses. We concentrate on the research and development of the lenses, the produce and sales. We want to offer customers the comfortable, adaptable and functional lenses...