... sand dredging hose PERFORMANCESuction hose (with steel flange) is assembled with dredgers to deliver silt and gravels. Wall thickness of the pipe ... resistant and bending-resistant.Applicatitons:1. Used in wind-pressured sand -spraying machine to get rid of the rust by ... ball.2. Widely used for sucking or discharging of water, sand, air, and powders in industry, agriculture, factory, mining and ...