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I-API 12 1/4 amayintshi eyi-hybrid bit yokumba i-hard rock deep deep oilwell
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Imboni ye-API 17.5 amayintshi PDC kanye ne-tricone hybrid drill bit ye-deep oilwell
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I-API 8.5 amayintshi eyi-hybrid drilling bit PDC-roller compound for complex hard
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9.5 amayintshi I-Hybrid bit PDC ehlanganiswe ne-cone roller yokumba uwoyela