Uthotho lwe-PZ30MC yinkqubo yokuhlanganisa ngokwemigangatho yezityalo, eyenziwe ngentsimbi eqengqelekayo ebandayo,kwaye iyasebenza kwisekethi yokuphela kwamandla ombane. Kukho iindidi ezimbini zeebhokisi: umphezulu kunye nokugungxula.