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3 cones rau cov menyuam khoom IADC127 11 5/8 "(295mm)
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IADC127 13 5/8 "(346mm) hauv Tshuag
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Customizedl zoo drilling khoom IADC127 14 3/4 "(374mm)
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Lag luam wholesale tricone khoom IADC127 17.5 nti (444.5mm)
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Tricone pob zeb khoom IADC137 6 nti (152mm) rau qhov zoo drilling
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API Tricone Drilling ntsis IADC215 8.5 nti (215.9mm) kev muag khoom
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API Tricone pob zeb khoom IADC215 12 1/4 "(311mm) nrog luv nqi
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API laum khoom Hoobkas IADC216 4.5 nti (114mm)
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IADC216 5 5/8 nti (143mm)
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IADC216 5 7/8inches (149mm)
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Milled hniav khoom IADC216 6.5 nti (165mm) rau qhov zoo drilling
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Tricone khoom hauv Tshuag IADC216 6 3/4 nti (171mm)