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