徐志谦

发表论文 14 篇

代表论文

• Special screwed joint connecting structure for titanium alloy oil well tube (2016)
• Titanium OCTG junction process for copper ferrule (2013)
• Special air sealing threaded connector structure for casing pipe (2013)
• 用于外径508～622.3mm套管螺纹的接头结构 (2013)
• The method for producing titanium alloy junction cuff material (2013)
• Operation tubing threaded connection structure (2010)