Jiangsu Green Stone Optical Co.Ltd.(abbreviated to SET0) is professional company which combines R&D, production and sales of spectacle lens.SETO has production base of 65000 square meters and more than 300 employees.SETO introduced complete set of equipment with the world&＃039;s advanced level, new production technology and moulds from Crossbows Optical Ltd., and Rx lens equipment from Gerber Coburn Optical Inc. The products are not only sold in the domestic market, but also are exported to Asia, South America, East Europe and Africa. With good quality and service, SETO had won high appreciation from overseas customers. The product range covers CR39 1.499, 1.56, 1.61 and 1.67 refractive index of the various types of myopia and reading spectaclel lens, including single vision, round bifocal, flat bifocal, invisible bifocal, progressive, tinted and photochromic spectacle lens. In addition, SETO supplies spectacle lens with HC and HMC treatment. Besides finished spectacle lens, SETO also supplies semi-finished spectacle lens and supplies OEM products with a complete of Rx lens equipment service.