... , high reliability, slightly vibration,low noise. HZT stainless steel chemical pump Product: HZT series chemical passage pumpCharicteristics: : runs steadily, high reliability ... diameter 3~50mm,liquid with solid content not exceeding 20%Casting materials:101,102,302,303,304,305,306(316),307 ... ,TA2,2Cr17,310S,501, Cr30, etc. HZT stainless steel chemical pump