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The first way in which proposed mining projects differ is the proposed method of moving or excavating the overburden.What follows are brief descriptions of the most common methods.1 open-pit mining open-pit mining is a type of strip mining in.
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.