Esinye isisombululo sokugcina iipleyiti zobunzima, unyawo oluncinci luvumela ukutshintshwa kwendawo eguquguqukayo ngelixa ugcina ukuhambelana neentlobo ezahlukeneyo zeeplate zobunzima. Ndiyabulela kwi-DHZ yokubonelela ngamandla kunye nemveliso, isakhiwo sesakhelo sezixhobo sihlala sihlala kwaye sinewaranti yeminyaka emihlanu.