位置：中游情绪：中性参考度：1/10
印度钢铁制造商塔塔钢铁有限公司6月26日（周一）在一份声明中表示，该公司利用炼钢过程的副产品林茨-多纳维茨（LD）渣生产的机制砂，开发出了绿色混凝土。
LD渣的利用长期以来一直是钢铁制造商面临的挑战。该公司称，为解决这一问题，塔塔钢铁工业副产品管理部门（IBM）利用LD渣开发了机ň..
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