Daqing Petrochemical, Daqing Refining, Harbin Petrochemical, Jilin Petrochemical, Jinzhou Petrochemical, Liaoyang Petrochemical, Fushun Petrochemical, Dalian Petrochemical, Liaohe Petrochemical, Jinsi Petrochemical, Hohhot Petrochemical, North China Petrochemical, Dagang Petrochemical, Changqing Petrochemical, Lanzhou Petrochemical, Qingyang Petrochemical, Ningxia Petrochemical, Golmud Refinery, Urumqi Petrochemical, Dushanzi Petrochemical, Tarim Petrochemical, Karamay Petrochemical, Guangxi Petrochemical, Sichuan Petrochemical , Yunnan Petrochemical, Beijing Natural Gas Pipeline, CPP, Western Pipeline, Tarim Oilfield, Daqing Oilfield, Changqing Oilfield, Xinjiang Oilfield, Southwest Oil and Gas Field, etc.
Jinling Company, Shanghai Company, Maoming Company, Changling Company, Jingmen Company, Baling Company, Wuhan Company, Tianjin Company, Yanshan Company, Qingdao Company, Yangzi Company, Nanjing Chemical Industries Company, Natural Gas Company, etc.
CNOOC Condition Monitoring Branch, Tianjin Branch, Zhanjiang Branch, Shenzhen Branch, Huizhou Energy Company, Ningbo Daxie Petrochemical, Taizhou Petrochemical and so on.
Shenhua Ningxia Coal Industry, Shenhua Ordos, Shenhua Baotou, Yangquan Coal Industry Group, Sichuan Coal Gasification, Hualu Hengsheng, Guizhou Jinchi Chemical, China Coal Technology & Engineering, etc.
China Three Gorges Renewables, China Datang Corporation, China Huaneng Group, etc.
Locomotive manufacturers and users, etc.
Machine manufacture:Shengu Group, Shaangu Group, CNYD, Dresser-Rand, Hangzhou Steam Turbine, Chongqing General Industry Group, KOBELCO, Zhejiang Qiangsheng Compressor Manufacturing and so on.
HQC, SEI, CEI, LPEC, CNPC First Construction, CNPC Sixth Construction, CNPC Northeast Refining & Chemical Engineering, CNPC Safety & Environment Institute, CPPE, etc.
Beijing Drainage Group, China Special Equipment Inspection & Research Institute, China Coal Research Institute, Hefei General Machinery Research Institute, ENN Group, China South-to-North Water Diversion Corporation limited and so on.
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