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Peb lub cones ntsis IADC517 13 5/8″ (346mm)
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API khawm laum ntsis IADC517 17 1/2″ (444.5mm)
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API tricone bits tus neeg muag khoom IADC117 5 7/8 nti (149mm)
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API milled hniav tricone laum ntsis IADC114 12 1/4″(311mm)
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Yuav cov khoom siv tricone IADC117 12 1/4 nti (311mm)
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Lub taub hau tho qhov dej IADC126 3 7/8 nti (98.4 hli) rau pob zeb tawv
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Lub Hoobkas Drilling Rig Bit IADC126 17 1/2 nti (444.5mm)
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Tricone ntsis Hoobkas IADC126 26 nti (660mm)
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Tag nrho cov laum me me Hoobkas IADC127 6 1/4 nti (158.8 hli)
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Tricone khoom siv IADC127 7.5 nti (190 hli)
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API rig drilling bits IADC127 8 1/2 nti (215 hli) rau pob zeb tawv
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Cov khoom siv Tricone hauv Tshuag IADC127 8 3/4 nti (222mm)