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Utanga API w'uduce two gucukura amariba y'amabuye maremare IADC537 9 5/8″ (244.5mm)
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IADC537 ifite utubuto twa API TCI two gucukura amariba akomeye y'amabuye, ifite uburebure bwa 250mm.
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IADC417 8 1/2″ (215.9mm) y'urutare rwa Tricone
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Uruganda rwa API rwa TCI tricone bit IADC617 5 5/8″ (142.9mm)
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IADC417 17.5″ (444.5mm) ya TCI tricone
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Uburyo bwo gucukura ikiraro cya API IADC417 12 1/4″ (311mm) ku ibuye rikomeye
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Uruganda rwa API rukora uduce twa rock roller cones IADC437 8.5″ two gucukura
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API tricone drill bit IADC437 6″ (152mm) yo gucukura amariba
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IADC447 ya TCI tricone bit ifite santimetero 215.9 (8 1/2 mm)
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IADC447 ifite santimetero 165 (165mm)
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Uduce dutatu tw'amabuye y'agaciro IADC517 10 5/8″ (269mm)
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IADC517 9 7/8″ (250mm) ku ibuye rikomeye