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API Rotary roller drill bit IADC517 4.5 inches (114mm) e teng setokong
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Konopo ea IADC517 118mm bakeng sa ho cheka majoe selibeng sa geothermal.
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Fektheri ea API ea roller bit e potolohang IADC517 4 3/4″ (120mm)
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Tungsten Carbide Kenya karolo ea ho phunya lefika IADC517 5 7/8″ (149mm)
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API Well drilling tricone bit IADC517 6″(152.4mm) e rekisoa
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TCI tricone bit IADC517 7 1/2″ (190mm)
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API Tricone Bit IADC517 8.5 inches (215.90mm)
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Karolo ea ho phunya ea API Tricone IADC517 8 3/4 inches (222mm) e teng setokong
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Karolo ea lefika le potolohang IADC517 11 5/8″ (295mm)
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Karolo ea tricone e potolohang IADC517 12 1/4″ (311mm)
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Likhoune tse tharo IADC517 13 5/8″ (346mm)
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Karolo ea ho phunya konopo ea API IADC517 17 1/2″ (444.5mm)