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procedures and steps of using borax in gold processing ppt

Oct 12 2014 · 1932 Classification of gold based casting alloys into type1234 by national bureau of standards This was accepted by ANSIADA 5 In 1907 Dr Willam H Taggart of Chicago advocated the use of lost wax technique 1932 Classification of gold based casting alloys into type1234 by national bureau of standards...As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.

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