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Kiwanda cha API cha TCI trione bit IADC617 5 5/8″ (142.9mm)
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API rotary trione bit IADC617 6 ” (152mm) kwa ajili ya kuchimba visima
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Tricone rock bit IADC617 8 1/2″ (215.9mm) kwa kuchimba visima
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API mtengenezaji wa trione rock bit IADC617 9 7/8 inchi” (250mm)
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Kiwanda cha API cha trione roller bit IADC617 inchi 12 1/4 (311.1mm)
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Kiwanda cha API cha vipande vya kuchimba miamba IADC617 inchi 17 1/2 (444.5mm) katika hisa
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TCI trione bit IADC617 6 1/2" (165mm) kwa ajili ya kuchimba visima