China Architecture Design and Research Group

Central and Southern China Municipal Engineering Design and Research Institute

China middle south municipal Engineesing Design and Research Institute

China Nonferrous Metals Industry Changsha Investigation and Design Research Institute

China Urban Construction Design and Research 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

Longgang Program and Architecture Design Institute

XianYang Architecture Design Research Institute

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

Anshan Research and Design Institute of Electrostatic Technology

Architectural Design and Research Institute of Guizhou Province

Bangbu Design and Research Institute of Geotechnical Investigation and Surveying

Beijing General Municipal Engineering Design and Research Institute

Bengbu Design and Research Institute of Geotechnical Investigation and Surveying

BengBu survey research and design institute

Changsha City Design and Research Institute of Exploration and Surveying

Changsha Design and Research Institute of Exploration and Surveying