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API 12 1/4 santimetero ya Hybrid bito yo gucukura peteroli yimbitse
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Uruganda rwa API 17.5 santimetero PDC na tricone hybrid drill bit ya peteroli yimbitse
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API 8.5 santimetero ya Hybrid gucukura biti PDC-roller ivanze kubintu bikomeye
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9.5 santimetero Hybrid bit PDC ihujwe na cone roller yo gucukura amavuta