Ucango lweglasi olungenamlilo lungenamlilo kwaye lungenasandi, ludala ubomi obuzolileyo. Umnyango weglasi ongenamlilo wentsimbi owenziwe ngensimbi engenasici, unemibala eyahlukeneyo, uxhasa ukulungelelanisa, kwaye ufanelekile kwiihotele, iinkampani, njl.