UKhenketho lwasefektri CNC Machining Workshop Iimpahla ezingekasilwa Igumbi lokulinganisa Ukuqina koMvavanyi Spectrum Analyzer Tension Tester Umatshini woVavanyo lwesitshizi seTyuwa Iiprojekti zeDijithali IiNdibaniselwano eziNtathu