Zhongguang High-tech Industrial Development Group founded in 1987 is a professional enterprise both in lightning protection and electromagnetic protection field. Since years of research and development, Zhongguang Group become the largest and most competitive enterprise in China, and also takes the leading position in the world in research of systematic theories of integrated lightning protection. Zhongguang product category covers 10 series, over 300 products in lightning protection and 8 series, over 500 products in electromagnetic protection including power supply surge protectors, signal surge protectors, lightning rods, substrate-adhesive surge protective component, low resistance ground modules, varies connectors with surge protection function, etc. With adequate quality assurance and perfect after-sale service, Zhongguang¡¯s products can completely meet the requirements of industries for telecommunication, electronics, broadcasting, TV, banking system, petrochemicals, networks, as well as airport facilities. Zhongguang Group, keeping abreast with the newest development of modern lightning protection and electromagnetic protection, has its own 23 patents for over 15 items of lightning protection, and has made contribution to the establishment of varies standards in lightning protection field. Zhongguang is the first one of surge protection enterprises who have got the qualification of ISO9001 certification in China and Levl I Engineering Design & Level I Engineering Construction.