Through technical reform, No. 3 Concentration Workshop of Dagushan Concentrator has effectively raised the grade of iron concentrate to over 65% so as to achieve good results.
介绍了大孤山选矿厂三选车间通过技术改造，有效地将铁精矿品位提高到6 5 %以上，取得了较好的效果。
The Heishilazi iron deposit, which lies between Donganshan iron mine and Dagushan iron mine in anshan, Liaoning Province, is a large iron deposit of anshan type found in Anshan-Benxi area recently.
鞍山黑石砬子铁矿床位于东鞍山铁矿与大孤山铁矿之间，是近年来鞍本地区发现的大型铁矿床。
The Heishilazi iron deposit, which lies between Donganshan iron mine and Dagushan iron mine in anshan, Liaoning Province, is a large iron deposit of anshan type found in Anshan-Benxi area recently.
鞍山黑石砬子铁矿床位于东鞍山铁矿与大孤山铁矿之间，是近年来鞍本地区发现的大型铁矿床。
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