Nibisanzwe byacu byoguswera umutwe hamwe nintoki yo kwiyuhagira.Iyi seti ni ntangarugero kugirango ikoreshwe.Ikiganza cyo kwiyuhagira cyinjijwe mu muyoboro w’amazi kurukuta, hanyuma ushyire umutwe woguswera mubundi bunini bwamaboko yo kwiyuhagira.