The torsional strength of the drilling tools can be greatly increased by using the double shoulder tool joint.

双台肩钻具接头可大幅度提高钻具的抗扭强度。

youdao

The torsional strength of the drilling tools can be greatly increased by using the double shoulder tool joint.

双台肩钻具接头可大幅度提高钻具的抗扭强度。

youdao