Isetyenziselwa ukuvavanya ubuchwephesha bokuqhekeza amandla kunye nokuqhekeza i-strangetion ye-yorn enye okanye i-trnd njengekotoni, uboya, i-sliber, umgca wekhemikhali, i-wire yentsimbi kunye ne-wire yentsimbi. Lo matshini wamkela umbala okhethiweyo wesikrini.
