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Iibhithi ze-oyile ze-API zezokwemba amanzi anzulu ngexabiso eliphantsi
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Iqhosha le-oilfield ye-API ethengiswayo ngexabiso eliphantsi kwisitokhwe
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I-tricone bit yeoyile yokwakheka okuqinileyo yokugrumba imithombo enzulu
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I-API yefektri ye-rubber sealed bearing oil roller drilling bit
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I-China API factory ye-oyile enzulu ye-oyile yelitye eliqinileyo
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Umzi-mveliso we-API we-tricone rock drilling bit yegesi yendalo