Jiangsu Avtar Optical Glasses Co., Ltd is one of the professional optical lens manufacturers in China. We are located in Danyang, Jiangsu, the world's largest eyewear production base. Our factory base can produce 30,000 pairs of high-quality lenses every day. we supply high quality 1.56, 1.61, 1.67, 1.74 HD Series, Anti Blue Light Series, Photochromic Series and progressive Series Lenses.