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API 8.5 santimetero hybrid drilling bit PDC-roller compound yo gukoresha mu buryo bukomeye
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Uruganda rwa API rwa santimetero 17.5 PDC na tricone hybrid drill bit byo gukoresha mu mwobo w'amavuta menshi
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Ingano ya santimetero 9.5 Hybrid bit PDC ivanze na cone roller yo gucukura peteroli
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API 12 1/4 santimetero hybrid bit yo gucukura ibigega by'amavuta mu buryo bukomeye bw'amabuye