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API khawm laum ntsis IADC517 17 1/2 "(444.5mm)
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Hlau Hniav IADC117 3 7/8 nti (98.4mm)
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API zoo drilling taub hau IADC117 4 5/8 nti (117.5mm) rau rig
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API Tricone khoom muag IADC117 5 7/8 nti (149mm)
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API Tricone laum khoom IADC111 15.5 nti (394mm) hauv Tshuag
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API laum khoom tsum IADC117 8 3/4 nti (222mm) rau qhov zoo drilling
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API milled hniav tricone laum khoom IADC114 12 1/4 "(311mm)
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Tricone laum khoom IADC117 7.5 nti (190mm) rau pob zeb zoo
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Tricone pob zeb khoom IADC117 7 7/8 nti (200mm)
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API Hoobkas ntawm steel hniav tricone khoom IADC117 6 nti (152mm)
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API Teb cov menyuam khoom IADC117 9.5 nti (241mm) hauv Tshuag
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API Hoobkas ntawm tricone pob zeb laum khoom IADC117 8 1/2 nti (216mm)