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ʻO ke anawaena o waho 115-350mm ODEX ʻo nā ʻōhua pahu pahu eccentric overburden no ka wili wai hohonu.
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Eccentric Overburden Drilling Casing System no ka wili luawai
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Rock Drilling Eccentric Overburden Casing System Odex Drill Bit Me ka maikaʻi
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ODEX Eccentric Drilling Tool/eccentric Overburden Drill Bit