RT @brandall9481: Next comes milling & grinding. Copper ore is hard and must be milled down to a fine sand. This step consumes vast amounts… 0 atbildes
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Artis Schlossberg (2022-09-26 12:04:03) |
RT @brandall9481: Next comes milling & grinding. Copper ore is hard and must be milled down to a fine sand. This step consumes vast amounts… | |