Fast China Investigation and Design Institute

Changsha Design and Research Institute of Exploration and Surveying

Anhui Investigation Design and Research Institute of Water Conservancy and Electric Power

Investigation and Design Research Institute of Water Resources and Hydropower

Investigation Design and Research Institute of Water Resources

Central and Southern China Municipal Engineering Design and Research Institute

China middle south municipal Engineesing Design and Research Institute

China Southwest Architecture Design and Research Institute

China Urban Construction Design and Research Institute

construction China Communications Fourth Harbour Engineering Investigation and Design Institute

East China Hydroelectric Power Investigation and Design Institute

Marine Design and Research Institute of China

North China Municipal Engineering Design and Research Institute

Southwest Municipal Engineering Design and Research Institute of China

China Nonferrous metals Industry Corporation

Design and Research Institute of Daye Non-ferrous Metals Company

Beijing Central Engineering and Research Research Institute of Non -ferrous Metallurgical Industry

Design and Investigation Institute of Machinery Industry

Hefei Design and Research Institute of Coal Industry Mimistry