Itekhnoloji yehlabathi yokuqala kunye nentsha.Uluhlu lwangaphandle lwegobolondo ye-roller yoxinzelelo lunokususwa kwaye lutshintshwe, kwaye uluhlu lwangaphakathi lungaphinda lusetyenziswe, ukugcina iindleko zokusetyenziswa kunye nokudala ixabiso elongezelelweyo.