Ukukhetha i-DTH drilling rig efanelekileyo, qwalasela le miba ilandelayo: Ukuqhuba Injongo: Ukumisela injongo ethile yeprojekthi yokomba, efana nokugrumba amaqula amanzi, ukuhlola imigodi, uphando lwe-geotechnical, okanye ukwakhiwa.Usetyenziso olwahlukeneyo lunokufuna iindidi ezahlukeneyo zezixhobo...
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