Iivalve zobhedu

Kwimibhobho yanamhlanje, Iivalve zobhedu zizinto eziyimfuneko kuwo omabini amashishini kunye nemimandla yoluntu ngenxa yokumelana nokugqwesa kwazo., amandla elungileyo oomatshini kunye nokuqhubekeka. Eli nqaku lijonge kusetyenziso olusebenzayo…