Changxing Optical Glasses Factory has established more than 10 years in Danyang City Jangsu Province China. Therefore, our factory can provide better quality lenses with competitive price. Our factory has two product lines to produce normal and function lenses which contain cr-39 1.499 lenses, 1.56, 1.61, 1.67 high index lenses, sunglasses lenses, blocker blue lenses, progressive lenses, and photochromic lenses with more than 10,000 pairs per day.