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large gold mine sand making machine in Venice

large gold mine sand making machine in Venice

What are the cheap and efficient sand making machines for gold mines most largesuction dredgeoperations employ one submerged operator and a person on the dredge the submerged operator works in deep water upstream of the gold dredge suction is produced by pumping water through a nozzle at high pressure the dredge sucks gravel sand and rocks off the river bottom and discharges the slurry

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