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Kuboola kwa API tricone IADC216 mainchesi 7 5/8 (194mm) pa chogwirira mafuta
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Ma cones bits atatu fakitale IADC217 mainchesi 3 7/8 (98mm)
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Ma Rotary drilling bits IADC217 mainchesi 6 (152mm)
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Ma API milled tooth three cones bits IADC217 7.5 mainchesi (190mm) alipo
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Zidutswa za mano achitsulo cha API IADC217 mainchesi 8.5 (215mm) pobowola miyala
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Zinthu zobowola zitsime zozama IADC217 mainchesi 11 5/8 (295.3mm) za miyala yolimba
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Ma tooth bits a API Mill IADC217 mainchesi 12 1/4 (311mm) obowolera zitsime
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Zinthu zobowola zotsika mtengo IADC217 mainchesi 14 3/4 (374mm) za miyala yolimba