TANG Feng-lin
China University of GeosciencesSHEN Zhong-hua
Wuxi Drilling Tools Factory Co., Ltd.DUAN Long-chen
China University of GeosciencesPENG Li
Wuxi Drilling Tools Factory Co., Ltd.LIU Shao-qing
Wuxi Drilling Tools Factory Co., Ltd.CHIKHOTKIN V.F.
China University of GeosciencesChina University of Geosciences,Wuxi Drilling Tools Factory Co., Ltd.,China University of Geosciences,Wuxi Drilling Tools Factory Co., Ltd.,Wuxi Drilling Tools Factory Co., Ltd.,China University of Geosciences
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