How can magnetic separators change the modern metal and mining industry？

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Since ancient humans began to know how to use metal materials, they have been washing minerals and metals in rivers.Afterwards, humans learned to pour ore into wooden chutes and use gravity for mineral sorting.Today, the modern mining industry has undergone tremendous changes in the past 100 years. The development of technology has brought new production tools to the mining industry.
During this process, the emergence of magnetic separators completely changed the way minerals were sorted in the past.

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