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80年代对于铁矿工业是严峻的,许多采矿公司永远倒闭了。得以生存的公司是靠积极降低成本做到这一点的。在这方面可能克利夫兰-克利夫斯公司(Cleveland-Cliffs Inc)最为成功。克利夫斯公司的宗旨一直是通过适用的工程措施降低成本。大概在希宾铁燧石矿选矿厂
The 1980s were severe for the iron ore industry, and many mining companies went bankrupt forever. The surviving company does this by actively reducing costs. Cleveland-Cliffs Inc may be the most successful in this regard. Cliffs’ mission has always been to reduce costs through the use of applicable engineering measures. About Hibbing iron chert ore dressing plant