- Moving Type:Other
Hengxing drilling tools interlocking kelly bar.
1.Adoption of advanced international six-key type distribution technology and standard modular design.
2.The whole set of kelly bar with light weight, high strength, high linearity of the single section, thin pipe wall, small seam between sections and good wear resistance of internal and external keys, it greatly satisfies the special requirements of rotary drilling machine.
3.Strict selection of steel grade to make sure strength at the max torque.
4.Fine workmanship performed by professional workers.
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