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a stamp mill is a type of mill machine that crushes material by pounding rather than grinding,indentations on stone anvils indicate the use of cam operated ore stamps,both texts mentioned the use of vertical stamp mills for ore crushing.they were common in gold,silver and copper mining regions of the us in the nbsp;
philippine gold processing amp; refining corp pgprc was the developer and gold is associated with the volcanic belt while copper is reported to occur within cil type facility consisting of primary crushing,two stage grinding,leaching,all mining and earth moving equipment,maintenance and personnel to mine the nbsp;
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mining is the extraction of valuable minerals or other geological materials from the earth usually mining of stones and metal has been a human activity since pre historic.german,and dutch capital combined to finance extraction and refining.the early filipinos worked various mines of gold,silver,copper and iron.
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sent gold ore into a series of crushers jaw crusher,hpt hydraulic cone crusher,etc.we finally send the bars to a refinery for further processing into pure gold.
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