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马冯峪铁矿联合开采增效益近年来，该矿地下铁矿石资源逐年减少，地采需在百米以下地层深部，既没有充足的资金，又缺乏专业地采设备和技术。为了走出困境，该矿与浙江平阳县井巷公司合作，走联合开采之路。双方签订了为期５年的开采合同。浙江平阳井巷公司担负钻孔、爆破...
In recent years, the underground iron ore resources of the mine have been reduced year by year. The underground mining needs to be deep in the strata below 100 meters. There is neither sufficient capital nor professional equipment and technology for mining. In order to get out of the woods, the mine and Pingyang County, Zhejiang Jing Lane Company, take the joint mining road. The two sides signed a five-year mining contract. Zhejiang Pingyang Wells Lane borehole, blasting ...