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Holding subsidiary company： Beiken Petrol Sci and Techn Dev Co., Ltd Guangzhou Beiken Energy Co., Ltd Sichuan Beiken Petrol Engin Techn Service Co., Ltd
Branches： Beiken Drilling Branch Company | Beiken Mud Techn Service Branch | Beiken Directional Well Branch | Beiken Underbalanced Techn Service Branch | Beiken Cementing Engineering Company Branch | Beiken Cementing Techn Service Branch | Beiken Testing Oil Extraction Branch | Beiken Chemical Branch |
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