Liaoning Yuguang Power Transmission Co.,Ltd. is established in 1999 and its predecessor is Dandong Yuguang Power Supply Equipment Factory. When the company is just established, it focuses on product quality and makes great efforts to develop independently innovative products. After it is verified and admitted by professional field, it increases capital investment and enlarge company scale in July 2002. And it changes its name. The company covers 11, 800sqm, among which the construction area is about 4,800sqm. The company integrates the product research and development, manufacture and the sales of high-voltage electrical apparatus and low-voltage electrical apparatus. It has passed GB/T19001-2008/ISO9001:2008 certification. It is a AAA credit rating company, a high-tech company and a privately operated science-and -technology company. It has over ten years experience and has accumulated rich research and development force and exquisite manufacture technology. It has made technology communication and cooperation with international famous companies. Because of its emphasis on the patented products development for many years and its high output frequency, it has been praised as Intellectual Property Right Work "Test Unit" of Dandong City.Since it cooperated with High Voltage Switch Research Institute of China Electric Power Research Institute to develop the high-voltage switch products in 2003, it continuously creates new patented products that can meet power industry requirements.Company products all pass the type test and authentication of related test departments and all their parameters meet or are higher than related national standards. Products performance is stable and outstanding and the technology and application are advanced. The products are widely sold all over China and are highly praised and widely acknowledged due to its exquisite workmanship, creative thoughts and good stability.