Jiangsu Green Stone Optical Co., Ltd. has more than 65000 square meters production bases, with more than 200 employee. We specialize in producing the CR-39 lens, including Myopia and reading, such as sphere, cylinder, multi-cylinder, round-top bifocal, flat-top bifocal, progressive, tint, photo chromic, polarizer with uc, hc, hmc, and emi coating. And now it introduced the complete set of the world advanced level equipment and the brand-new non-dust production craft to ensure the high quality.