... 1year without quality issue 5,ISO&CE ZN 26inch marine dredging pump 1,Production Overview: ZN dredging pump is ... single suction cantilever horizontal centrifugal pump with advantages of light weight, good wear-resistan, super dredging performance, perfectly ... hydraulic loss, high efficiency and low oil-consumptiong) Little volume, light weighth) Steady operating, little vibration, low noisei) Simple & ...