



Shanghai Yuanfang Foundation Engineering Co., Ltd.
Institute of Foundation Engineering, China Academy of Building Research
Kunming University of Science and Technology
China Railway Eryuan Kunming Survey, Design and Research Institute Co., Ltd.
Shanxi Xinhai Geotechnical Engineering Co., Ltd.
Guangzhou South Satellite Navigation Instrument Co., Ltd.
Ningxia Dynamic Compaction Machinery Engineering Co., Ltd.
Beijing Urban Construction Survey and Design Research Institute Co., Ltd.
Kunming Survey and Design Research Institute Co., Ltd. of China Railway Eryuan Engineering Group
Jiangsu Taixin Machinery Technology Co., Ltd.
China Railway Eryuan Engineering Group
Beijing Urban Construction Survey and Design Research Institute Co., Ltd.
Shanxi Jinbaodao Foundation Engineering Co., Ltd.
Beijing Urban Construction Survey, Design & Research Institute Co., Ltd.
Foundation and Underground Engineering Research Institute, Beijing Institute of Architectural Design Co., Ltd.