Oil Content of Sew Thread 缝纫线含油率
thread-cutting oil 螺纹切削油
oil well pipe thread 油井管用螺丝纹
apply oil for screw thread 涂抹丝扣油
oil tube thread 油管螺纹
oil pipe thread 石油管螺纹
thread cutting oil 螺纹切削油
The program is to process all kinds of oil well pipe thread and casing coupling.
该项目是加工各类油井管螺纹、套管接箍的机械加工项目。
Thread gluing is a common failure of oil tubing found during manufacture and operation.
石油油管的粘扣是油管生产和使用过程中常见的一种失效形式。
According to the principle of four bar linkage mechanism, the new style thread inspecting stand for oil tubes is designed.
根据平面四连杆机构原理设计了新型石油套管螺纹检查台。
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