Danyang Tecra Optical Instruments Co., Ltd. is established in 1999, located at Danyang city, Jiangsu province where named glasses town. Our company is specializing in producing and selling all kinds of optical lenses, glasses cases, glasses accessories, glasses tools, and optical machines. We have worked at optical area over twenty years and earned a good reputation from our client. Tecra has self-import & export license, our products are exported to Europe, the Middle East, North America, South America, Africa, and Southeast Asia.