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API tus neeg muab khoom ntawm cov pob zeb tob tob drilling bits IADC537 9 5/8 "(244.5mm)
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API TCI khawm ntsis IADC537 9 7/8″ (250mm) rau kev khawb av pob zeb tawv
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Tricone pob zeb ntsis IADC417 8 1/2″(215.9mm)
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Lub Hoobkas API ntawm TCI tricone ntsis IADC617 5 5/8″ (142.9mm)
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TCI tricone ntsis IADC417 17.5″(444.5mm)
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API qhov dej drilling bit IADC417 12 1/4″ (311mm) rau pob zeb tawv
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API Hoobkas ntawm cov pob zeb roller cones IADC437 8.5 nti rau kev drilling
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API tricone laum ntsis IADC437 6″ (152mm) rau kev khawb qhov dej
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TCI tricone ntsis IADC447 8 1/2 nti (215.9 hli)
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Lub tshuab laum teb IADC447 6.5 nti (165 hli)
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Peb lub pob zeb cones IADC517 10 5/8″ (269mm)
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Rotary tricone Bits IADC517 9 7/8″ (250mm) rau pob zeb tawv