锰矿产品对当代工业社会极其重要,但是目前面临着严重的经济问题,这些经济问题和解决这些问题的方针正在使采矿工业这个重要部门发生重大的变化。 Manganese ore products are extremely important to the contemporary industrial society, but are currently facing serious economic problems. These economic problems and the solution to these problems are undergoing major changes in this important sector of the mining industry.