Portable Battery Backup Power Supply for Home suppliers Our History Founded in 2012, the company is located in the beautiful coastal city of Qinhuangdao. The company has R & D department, quality inspection department, production department, after-sales maintenance department, domestic marketing department and international business department. It has a number of patents such as technical invention. It is a scientific and technological innovation enterprise integrating product R & D, production, sales and service. The company has its own brands such as "Yukong", suppliers website:http://www.suntrvers.com/