Danyang Dayao optical mainly produces CR-39 sunglasses lens,polarized lens, Strictly conducts ISO 9001 in whole processing and quality control. Detailed record has been taken of various production data, and analysis made to obtained data. With a strict quality testing department, the quality can meet the domestic and international markets in Australia , Europe and the United States.We get a short delivery on time. With about 10 years development, our company has got a good reputation in the optical industry. Stable quality and good service bring excellent results from our customers which give us the energy and desire to move ahead. All staff of Dayao optical Sincerely look forward to your visit!  ...

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