单词：spiegel iron
carbon (from three and a half to six per cent) and some manganese. When
the manganese reaches twenty-five per cent and upwards it has a
granular structure, and constitutes the alloy ferro manganese, largely
used in the manufacture of Bessemer steel. Called also specular pig
iron, spiegel, and spiegeleisen.
- spiegel镜铁(低锰铁...
- spiegeleisen镜铁
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