Xa kulungiswa ibhalansi yamavili omthengi, iintsimbi zobunzima zamavili zisetyenziselwa ukulungisa nakuphi na ukungalingani.Ubunzima bevili obufanelekileyo obubekwe kwindawo elungileyo bunceda ukuqinisekisa ukusebenza kakuhle kwetayara.Ubunzima bevili elincamathelayo bufumaneka kwiintlobo ngeentlobo zemathiriyeli.Kodwa ezona zixhaphakileyo ziyintsimbi egqunyiweyo, ilothe, i-zinc.Ubunzima bevili lethu elincamathelayo busebenzisa iteyiphu ekumgangatho ophezulu ngamandla okucheba i-150N ye-5g engaphezulu lee kunomgangatho we-40N.