Thinkey Optical is a joint venture with 20 years of expertise in optical lens manufacturing. We specialize in 1.56 CR39 and photochromic lens technology, and have built a strong reputation in the field. Our facility, located in Duqiao Town, Linhai, Zhejiang Province, covers an area of 40 acres with 20,000㎡ of production space. Equipped with six machines imported from Korea and professional equipment from German Satisloh RX, and supported by 200 skilled workers, we maintain a stable daily output of 30,000 high-quality lenses.