Intshayelelo:
I-coil yensimbi eshushu iyasebenza kwintsimi yokwakha, ishishini lokwakha iinqanawa, i-petroleum, amashishini ekhemikhali, amashishini emfazwe kunye nombane, ukulungiswa kokutya kunye noshishino lwezonyango, i-boiler heat exchanger, oomatshini kunye neendawo ze-hardware, njl.