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Kev kub ceev tungsten carbide laum khoom IADC537 5 7/8 "(149mm)
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Tricone pob zeb khoom IADC537 6 nti (152.4 mm)
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Teb tricone ntsis IADC537 6 1/4 nti (159 mm)
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TCI tricone pob zeb khoom IADC537 6 3/4 "(171mm)
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API khawm ntsis IADC537 6.5 nti (165mm) nrog luv nqi
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TCI pob zeb ntsis IADC537 7 1/2 "(190 mm)
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API Hoobkas tricone ntsis IADC537 7 5/8 "(193.7 hli)
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TCI tricone ntsis IADC537 7 7/8 nti (200 mm)
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Tungsten Carbide Insert Bit IADC537 8 1/2 "(215.9mm)
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API khawm pob zeb laum ntsis IADC537 8 3/4 "(222.2mm) nrog luv nqi
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TCI laum ntsis IADC537 9 1/2 "(241mm) rau pob zeb oilwell
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API pob zeb zoo drilling khoom IADC537 10 5/8 nti (269mm)