Chizoloŵezi chamkati chamkati chamkati cha valve yamafuta ndi chinthu chofunikira kwambiri chopangidwa ndi makina olondola kwambiri a CNC.Kupopera kwamkatiku kumagwiritsidwa ntchito kwambiri m'mavavu amafuta ang'onoang'ono kuwongolera kutsegula ndi kutseka kwa mavavu amafuta ndikuwongolera bwino kutuluka kwamadzi ndi kuthamanga.