BEIJING OILFIELD TECHNOLOGIES CO., LTD.

Add.:No.3 Building, No.33 Zique Road, Haidian District, Beijing, 100095

Tel.0086-10-89681198, Fax.0086-10-89687590

BEIJING OILFIELD TECHNOLOGIES CO., LTD. DEZHOU BRANCH

ADD.No.2677,No.8 Street of Chongde, Economic &Technology development Zone, Dezhou City, Shandong Province, China