sifanele kutsi silindzele kwehla kwelizinga lemphahla letsengiselwa lamanye emave, kwehla kwelinani letivakashi letingenako, nelifutse lelibi kabi kutekukhicita, kusebenta kwemabhizinisi nekwakheka kwematfuba emisebenti nekugcina tisebenti emsebentini.

kufune ka silindele ukwehla kwiimve liso ezithengiswa ngaphandle, ukwehla kwamanani abakhenkethi abafika kweli kunye nefuthe elixhalabisayo kwimisebenzi yokwenza iimveliso, uzinzo loshishino kunye nokudalwa kwemisebenzi kananjalo nokugcineka kwayo.
