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石材礦山生產中存在哪些影響開采成本的重要因素？

石材礦山生產中存在哪些影響開采成本的重要因素？

荒料率的高低，會直接影響了整個礦山的開采成本和生產效益。另外，除了礦山本身的荒料率，企業的荒料開采效率（產量）也會直接影響整個礦山的開采成本。運輸過程對礦山開采成本的影響，往往與礦...

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