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444.5mm 17 1/2 Inch Tci Tricone Drill Bits In Soft Formation

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City: Cangzhou
Province/State: Hebei
Country/Region: China

444.5mm 17 1/2 Inch Tci Tricone Drill Bits In Soft Formation

444.5mm 17 1/2 Inch Tci Tricone Drill Bits In Soft Formation

The shearing effect of teeth itself is also an important cutting method that cannot be ignored. Under the action of drilling pressure and drill string rotation, teeth can crush and feed into the rock...

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