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Cov khoom siv dov lub khob hliav qab IADC216 5 5/8 nti (143 hli)
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Cov khoom siv dov kaw IADC216 5 7/8inches (149mm)
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Cov khoom siv Tricone hauv Tshuag IADC216 6 3/4 nti (171mm)
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Lub ntsis dill tig IADC216 7 7/8 nti (200 hli)
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Cov khoom siv rotary IADC216 10 5/8 nti (269mm)
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Yuav cov khoom siv tho qhov IADC216 17.5″ (444.5mm)
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API tricone laum ntsis nqe IADC216 4 5/8 nti (118mm)
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Cov khoom siv tricone tob tob IADC216 6 nti (152 hli)
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Pob zeb diamond tricone ntsis IADC216 7.5 nti (190 hli)
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Tricone bits Hoobkas IADC216 9 7/8inches (250.8mm)
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API lub tshuab laum me me Hoobkas IADC216 4.5 nti (114 hli)
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API drilling rig bits tus neeg muag khoom IADC216 5 3/4 nti (146mm)