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Uduce twa Tricone Roller Bits IADC517 santimetero 241 (241mm)
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IADC517 ifite santimetero 200 (200mm) ifite uburebure bwa santimetero 100
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Uduce twa TCI dufunganye tw'amabuye IADC517 6 1/2″ (165mm) two gucukura amariba
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Uduce two gucukura uduce twa Tricone IADC517 6 1/4″ (159mm)
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Ibice bifunga by'utubuto twa API IADC517 bifite 133mm (5 1/4″) biri mu bubiko
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Ibuto IaDC537 3 7/8″ (98mm)
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Uduce twa Tricone two gucukura IADC537 4 3/4″ (120.6mm)
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API tricone drill bit IADC537 14 3/4″ (374mm) yo gukoresha amabuye akomeye
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Umutobo wo gucukura ukoresheje icyuma gishyushya IADC637 4 5/8″ (118mm)
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Uduce twa Tricone IADC537 4 5/8″ (118mm)
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IADC537 5 1/4″ (133mm) ya API tricone rock bit
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API rock drill bit IADC537 5 1/2” (139.7 mm) yo gukoresha mu gucukura neza