?? 2019/5/27 9:33:43 Shanghai Warner Telecom is a global leader in the manufacture and supply of telecommunications equipment,network solution and energy saving system. As a science & technology innovative company, we are dealing with the R&D, manufacture, distribution and after-sales services of optical network communication equipment, optical fiber cable distribution products, telecom shelters and outdoor telecommunication cabinets with it's related power system ,control system ,cooling system ,battery system etc .