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          MUDANJIANG ZHONGYUAN DRILLING CO.,LTD is a Large Petroleum Machinery Manufacturing Accessories enterprise in Mudanjiang ...

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          • Brief Introduction
            MUDANJIANG ZHONGYUAN DRILLING CO.,LTD is a Large Petroleum Machinery Manufacturing Accessories enterprise in Mudanjiang City Heilongjiang Province. The company ...[details]
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            鉆頭技術與鉆井活動同步發展新型旋轉導向裝置近來人們越來越重視對可用于旋轉導向鉆井系統(RSS)的鉆頭的研究,這類鉆頭使得設計更為復雜的井眼形狀成為可能,包括以前采用常...[details]
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