Shanxi oudebao electrical engineering Ltd., The company has the core departments such as research and development center, technical service support department, engineering center and market operational department. Our R & D team mainly consisting of doctors and masters has successfully developed a number of national patented technologies. For building up professional electronic energy services company while in accordance with national trends, the "novel no-power AC contactor" successfully developed in 2013 focused on the market potential demands and national energy conservation and emission reduction policy as well as the new oriental development project. We will aim at needs of the customers, build up energy-saving service industry platform in joint efforts of leading companies and research power to create a win-win situation for energy conservation industry.