explain about the Metallurgical tools/ devices used in extraction of minerals in Uttarakhand- any two.
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Mining is the extraction of valuable minerals or other geological materials from the earth, from an ore body, vein or (coal) seam. The Journal of Powder metallurgy & mining provides an open access platform for advance research and development with wide-ranging aspects of metallic compounds , alloys, blends, composites, fabrication, manufacturing processes, metallurgical extraction,
Flotation equipment
mechanism for air
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