SETO 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, mutil-cylinder, round-top bifocall, flat-top bifocal, progressive, tint, photo chromic, polarizer with uc, hx, hmx, 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. SETO now enjoyed a high reputation due to its owned strong experise, advanced equipments, exquisite technology, competitive price and consummate service, and we are looking forward to your arrival and further cooperation!