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Underground mining mineral exploitation in which all the extraction is carried out beneath the surface of earth.Underground mining methods these are the methodstechniques employed when the depth of the deposit,the stripping ratio of the overburden to.
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.