Steelmaking ua ntej ua hlau. Hlau los ntawm npua hlau. Npua hlau tau los ntawm smelting hlau ore muaj cov ntsiab lus siab carbon thiab muaj ntau yam impurities (xws li silicon, manganese, phosphorus, sulfur, thiab lwm yam). Yog li ntawd, npua hlau tsis muaj plasticity thiab toughness, muaj cov khoom siv tsis zoo, thiab ca ...
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