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In Sulawesi, Indonesia, miners add 1 kg Hg in each ball mill while
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Using a small ball mill to investigate gold liberation . 12 mining equipment, and to practice behaviors that reduce or eliminate the risk of mercury
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Manual for Training Artisanal and Small-Scale Gold Miners - IW:Learn
Using a small ball mill to investigate gold liberation . 12 mining equipment, and to practice behaviors that reduce or eliminate the risk of mercury
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