About Cha Yongjin
About 中国石油集団鑽井工程技術研究院
About Hu Shijie
About 中国石油科技評估中心
About Zhuo Lubin
About 中国石油集団鑽井工程技術研究院
About Liu Mingxin
About 中国石油集団鑽井工程技術研究院;中国石油大学
About Li Hong
About 中国石油集団鑽井工程技術研究院
About Zuan Cai Gongyi
About People's Republic of China
About riser
About corrosion resistance
About anti-corrosion metal
About titanium base alloy
About acid resistance
About twist drill
About drawing(extension)
About petroleum
About three dimension
About nickel base alloy
About large deformation
About sea water
About ケーシング
About 高強度
About Nonferrous metallic materials
About Mechanical properties
About Other cutting
About チタン合金
About 石油
About パイプ
About 応用
About 展望
About 研究