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I-Casing tube ubukhulu bangaphandle ububanzi obuyi-115-350mm ODEX drill bits eccentric overburden system casing yokumba imithombo yamanzi ejulile
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I-Eccentric Overburden Drilling Casing System yokumba umthombo
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I-Rock Drilling Eccentric Overburden Casing System Odex Drill Bit Ngekhwalithi Enhle
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I-ODEX Eccentric Drilling Tool/i-eccentric Overburden Drill Bit