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3-10 tph Mini Sand Washer Gravel Cleaning Washer Silica Sand Screw Washing Machine. US $4900-$6900/ Set. 1.0 Sets (Min. Order) 4 YRS Henan China First Engineering Technology Co., Ltd. 100.0%. Contact Supplier. Compare. Spiral Sand Washer Machine is widely used in desiliming and screning of sand and crushed rock in construction site, stone ...