节点：中游（冶炼、中间品）位置：中游情绪：中性参考度：2/10
国内钢铁企业研发的铁矿尾矿制备微晶石材技术实现规模化量产，每年可消纳铁矿尾矿..00万吨。生产的微晶石材性能优于传统天然石材，实现了尾矿资源的高附加值全利用。
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