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PET-LINK COMPANY LIMITED
Geological Exploration Institute of the First Exploration Bureau of China General Administration of Coal Geology
GNC Tech Co. Ltd.
Beijing Bishuiyuan Membrane Technology Co., Ltd.
Huaneng Shanghai Gas Turbine Power Generation Co. Ltd.
Depeche SRLModena, Italy
Jiangsu Hengtong Precision Metal Material Co., Ltd.Jiangsu Sheng, China
Sinopec Geophysical Corp.
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