I am glad to hear that you are interested in optical lens and frames. So I introduce our company to u. BO NA optical is one of the leading ophthalmic lens supplier from China. Pls visit our website: *****Our lenses cover a wide variety, including both mineral glass lenses and organic lenses, single vision lenses, bifocal lenses and progressive lenses, finished lenses and semi-finished lenses, normal power and Rx power lenses.