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API tricone drilling IADC216 7 5/8 santimetero (194mm) yo gucukura peteroli
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Uruganda rw'uduce dutatu twa cones IADC217 rufite santimetero 98 (98mm)
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Uduce two gucukura duzunguruka IADC217 santimetero 152 (152mm)
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Inyo rya API ryaciwe uduce dutatu tw'udupira IADC217 dufite santimetero 190 (7.5 mm) mu bubiko
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Uduce tw'amenyo y'icyuma cya API IADC217 santimetero 215 (8.5 mm) two gucukura amabuye
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Uduce two gucukura amariba y'inkengero zirebire IADC217 11 santimetero 5/8 (295.3mm) ku ibuye rikomeye
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Uduce tw'amenyo ya API Mill IADC217 12 1/4 santimetero (311mm) two gucukura amariba
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Ibice byo gucukura bifite agaciro gake IADC217 bifite santimetero 374 (14 3/4 cm) ku ibuye rikomeye