Hunan Vanguard Group Co., Ltd. is a large state-owned enterprise under the China South Industries Corporation. Vanguard Group is founded in 1890; its headquarters is located in Chenxi County, Hunan Province, with a long history of more than 120 years. It is divided in to two areas: Headquarters and Changsha new area, with existing assets of USD100 million, with a total floor area of 8.13 million square meters. We have more than 3,000 personnel, among whom, 420 personnel are engineers and technicians, and there are 40 personnel with decades of experience in hydro power equipments research and...