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· Jin Ma has gained gratifying achievements in 2010 annual drilling fluid and completion fluid technology seminar 　　发布日期：2012-11-03
· The company made a progress in Zhengzhou land acquisition affair 　　发布日期：2012-11-03
· The company held 2010 annual summary and commendation congress 　　发布日期：2012-11-03
· Starch project 　　发布日期：2010-11-03

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