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A number of alternative methods have been sug-gested and tested with limited degrees of success hilson van der horst 2002.In 2009 geocenter denmark financed a project to test the feasibility of using borax as a replacement for mercury in small-scale gold extraction in tanzania.
We are a large-scale joint-stock enterprise integrating scientific research, production and sales.Our leading products have crushing equipment, sand making equipment, mobile crusher, etc., Each type of product is with complete specifications. All products have passed ISO9001, CE and GOST international quality system certification.