Brief submersible sand suction dredger 1.sand mining dredger 2.Reasonable price 3.High quality Brief submersible sand suction dredger SUMMARYBrief submersible sand suction dredger is suitable for delivering sand ,slurry, slag etc.within ... efficiency of pumping slurry. Operation manual of suction sand dredger 1. applied rangeWidely used for pumping silver sand, slurry, gravel, mud…in many rivers, ...