Xi’an Tian Gong Electric CO., LTD was established in October of 2002 in Xi’an which is one of the four ancient cities in the world and is the China’s important base for electric equipment manufacturing. As a high-technology company , we have been devoting our efforts to researching and developing of MOA for many years, and have the ability to developing the new varieties of products. The granulating powder which developed by Tian Gong used for producing high-performance MOR, to meet the requirements of all kinds of MOA. Our company has made imporant contribution to the developing of China’s 750KV and 1000kv arrester. The self-developed technology of manufacturing high-performance zinc oxide varistor has won National Key Product Award in 2005. Compare with the ordinary MOR, high-performance MOR have many advantages, such as standard technological process, short production cycle , energy absorption capacity, high-resistance film Flow density, pressure ratio, shock and aging stability and so on. Our leading products are high-performance zinc oxide varistors with large capacity that include alternating current varistors, direct current varistors ，low-gradient discharge counter varistor , varistor of large capacity series compensation. We have advanced inspection equipments, products must be strictly inspected before they leave the factory. With keeping technological innovation, all performance figures of our products have achieved the international advanced level. Our company has set up excellent quality management system, and has successfully passed the ISO9001 standards, the international quality management system certification. Xi’an Tian Gong Electric CO., LTD will welcome customers from all of the world to visit our factory, and hope our products would be your first and best choice.