Shuozhou Quality Supervision Bureau
Bazhong Shengquan Water Co., Ltd
Harbin Market Supervision Administration
China Gas Holding Co. Ltd
Shenzhen Gas Group Co. Ltd
China General Nuclear Power Corporation
Hebei Quality Supervision Bureau
Shenyang Quality Inspection Bureau
Zhengzhou Quality Inspection Bureau
Hengdian Group
China National Offshore Oil Corporation Ltd
CNPC Kunlun Gas Co. Ltd
consulting
