... Product Feature1 For sand production,river maintenance,etc2 Reliable hydraulic system3 Solid structure and top quality parts4 Ideal dredging ... ; exactly, it refers to the effective energy that the unit mass of fluid flowing to obtainthrough the dredging pump in ... Service :Will provide 12-months warranty for the quality of the main parts : Diesel engines, generators, gear boxes, dredge pumps, Hydraulic ...