Jiangsu Shuanghui Power Development Co., Ltd. is one of leaders in producing transmission/distribution/substation hardware and fittings in wide category in China. Products cover 110kV to1000kV in all types, with process of casting, forging, galvanizing, fabricating, etc. In 2005, Shuanghui Power serviced for AC 750kV power transmission line. In 2007, Shuanghui Power won the first AC 1000kV transmission line of Yangtze River crossing project which span is 1800 meter. In 2008, Shuanghui Power developed a complete set of electric power fittings of DC ±800kV level and successfully used. All the production process from design to shipment is controlled according to ISO 9001.</p>