... ,1year without quality issue 5,ISO&CE ZN 26inch marine dredging pump 1,Production Overview: ZN dredging pump is a new type ... our company,aiming at rivers and seas out of repair.ZN pump is a single-stage single suction cantilever horizontal centrifugal ... life of partsl) Long operating life of parts3,Main Usages ZN dredge pumps are widely used to dredge and dam in ...