Optical
In the optical Group stock code 002189, founded in 1968, is a large state-owned civil-military Union type photoelectric listed enterprises, the main products include precision optical tuple member, optical materials, light-sensitive resistor photoelectric industry in the upstream product, as well as optical devices, optical machine, photovoltaic system integration, etc. photovoltaic industry downstream products,and the formation of military people products business line parallel development of the trend.