https://ujcontent.uj.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 Mechanosynthesis of reaction products between tungsten carbide cobalt drill bits and hematite ore and their characterization https://ujcontent.uj.ac.za/vital/access/manager/Repository/uj:2586 Sat 16 Sep 2017 01:39:13 SAST ]]> A review of the specific performance characteristics of hard rock tunnel boring machines https://ujcontent.uj.ac.za/vital/access/manager/Repository/uj:14078 Sat 16 Sep 2017 00:00:26 SAST ]]>