Shanghai YUNAI Board Co., LTD. (YUNAI or YUNAI for short), focusing on the research, development and production of roof lighting, energy saving and environmental protection materials, is a leading domestic manufacturer of PC polycarbonate and FRP lighting composite materials, with its current business all over the world.Is a high-quality, enterprising, dare to innovate professional management and technology research and development team, which r&d engineers, technical team accounted for a quarter of the total number of employees, strong research and development force has been the pride of Goodwill.The company firmly believes that "quality creates brand, integrity creates brilliance, reputation, the panel experts around you"