Imishini yokudlulisa ingumkhiqizo onenhloso ejwayelekile, ingasetshenziswa kabanzi ezintweni zokwakha, usimende, insimbi, ugesi, izimayini, amachweba, amakhemikhali, imboni yokukhanya nezinye izimboni.Ngokuthuthuka komnotho, imikhiqizo yemishini yokuthutha ihlale inothiswa, kuhlanganise ne-bel...
Funda kabanzi