... and gravel'.b. There is almost no wearing parts except screen mesh.c. The machine usage life is long.Working Principle The ... goes up slowly, the water begins to drop through the mesh and fall back in the washing launder, on one hand ... Crusher, Feeder, Ball Mill, Rod Mill, Raymond Mill, Conveyor, Vibrating Screen, Flotation Machine, Magnetic Separator, Shaking Table, Spiral Classifier, Thickener, Filter ...