Event: 9th Wenzhou Optics Fair, China (WOF) Date: 06-08, July, 2011 Venue: Wenzhou Int`l Convention & Exhibition Center Scale: 15000sqm, 600 booths Exhibits: sunglasses, optical glasses, presbyoptic glasses, lens, frames, package (bags, boxex, cloth), glasses spare parts, optical tools, optics manufacturing equipments optical instruments, optical raw materials, contact lens@optical care products, etc; Shanghai perfect optical glasses co., ltd has been established in 1998. The factory is located in the Danyang City of development zone. It imported technology, production facility, especially, the coating machines from Korea. Some technician also is from Korea. The workshop building covers an area of more than 15,000 square meters. Annual output will be over 5,500 thousand pairs of lens. The factory has super clean working environment, and strict qualities control policy. Every piece of lens has to be checked during every step of production. So, it can deliver the perfect lens to customers. The factory has comfortable money and goods return policy if customers are not satisfied with lens and services. So, currently, lens in the factory have been sold all over the world. The idea of perfect optical: quality is created consummate.