... Submersible Pump Dredger Designed Aim: To pump sand out from river course Technical Requirements: Dredging Depth : ≤25m Working Capacity: ≤ ... /Delivery ≤500m Application:Sand Pumping in sea,lake,river,reservoir and ports YHQB Dredger consists of-Hull-Sand ... : colored steel shingles Functions:1) For sand dredging , river maintenance,etc2) Reliable hydraulic system3) Fresh water engine cooling system ...