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。
According to the principle of four bar linkage mechanism, the new style thread inspecting stand for oil tubes is designed.
根据需要可分为套管螺纹循环接头和油壬螺纹循环接头(全规格)。
According to actual needs. there are circulating sub with casing thread and circulating sub with union thread.
除了提供机械强度或结构强度外，套管螺纹还必须与相关的压力和流体相适应。
In addition to providing mechanical or structural strength, the casing thread must be compatible with the pressures and fluids associated with the application.
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