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API rotary tricone bit IADC617 6 ” (152mm) yo gucukura amariba
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IADC617 ifite uburebure bwa 8 1/2″ (215.9mm) bwo gucukura amariba
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Uruganda rwa API rwa tricone rock bit IADC617 9 7/8 inches” (250mm)
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Uruganda rwa API rwa tricone roller bit IADC617 rufite santimetero 311.1 (12 1/4 mm)
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Uruganda rwa API rukora uduce two gucukura amabuye IADC617 dufite santimetero 444.5 mu bubiko
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IADC617 ifite 165mm (165mm) yo gucukura ibikoresho byo gucukura bya TCI tricone
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Uruganda rwa API rwa TCI tricone bit IADC617 5 5/8″ (142.9mm)