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sand washing machine gold processing steps

sand washing machine gold processing steps

processing rock salt shafts are sunk into the center of the salt deposit. then a machine that looks like a gigantic chain saw is used to cut a slot about 6.0 inches 15 cm high, about 66 feet 20 m wide, and about 10 feet 3 m deep into the salt at floor level. insoluble impurities such as sand and clay and slightly soluble

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