Changchun Jiu Tian Optoelectric Co., Ltd. was established in 2008, which is a high-tech enterprise specializing in the research and development, production and sales of Precision optical components， and has passed the ISO 9001:2015 quality management system certification nearly 19 years. JT. is located in Changchun, attached to the scientific research and technical support of Changchun Institute of Optics, Fine Mechanics and Physics and many scientific research institutes and colleges, JT has unique advantages in products design and technical processing. JT has optical processing technology, various advanced processing and testing equipments, including Zygo interferometer and three high-end coating machines, complete production line, and perfect enterprise management system.