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自1982年9月以来,一种新炼钢法在新日本钢铁公司君津厂获得工业应用。该法称为最佳精炼法(ORP),它把过去仅在氧气
Since September 1982, a new steelmaking method has been used commercially by Jun Nippin Steel, a Japanese steel company. The law is called the best refining method (ORP), it put the past only in oxygen