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Uduce twa tricone twinshi IADC117 twa santimetero 159 (159mm)
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Abakora utwuma twa Tricone IADC117 6 3/4 santimetero (171mm)
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Uduce two gucukura amabuye ya Tricone IADC117 santimetero 190 (7.5 mm) ku iriba rikomeye ry'amabuye
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Uduce tw'amabuye ya Tricone IADC117 santimetero 200 (200mm)
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Uruganda rwa API rw'uduce two gucukura amabuye ya tricone IADC117 8 1/2 santimetero (216mm)
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Utanga ibikoresho byo gucukura amariba bya API IADC117 IADC117 ifite santimetero 222 (8 3/4 santimetero) zo gucukura amariba.
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API Rotary roller bits IADC117 ifite santimetero 241 (241mm) mu bubiko
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Igiciro cya biti bya Tricone IADC117 9 7/8 santimetero (250mm)
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Uduce twa tricone twakozwe ku giti cyayo IADC117 dufite santimetero 346 (13 5/8 inches)
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Ibice byo gucukura amariba byo mu Bushinwa IADC117 santimetero 17.5 (444.5mm)
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API triocne drilling IADC125 17 1/2 santimetero (444.5mm)
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Umucuruzi w'ibice by'amenyo byaciwe IADC126 4.5 santimetero (114mm)