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由冶金部钢铁研究总院、张家口市四方台铁合金厂、吉林冶金机电设备制造厂合作开发的“直流电炉冶炼铁合金技术”项目,1990年10月在张家口市通过冶金部主持的技术鉴定。包括炼钢和铁合金界的专家和代表
The “DC Electric Furnace Smelting Iron Alloy Technology” project jointly developed by the Steel Research Institute of the Ministry of Metallurgy, the Sifang Taiwan Iron Alloy Plant in Zhangjiakou City, and the Jilin Metallurgy Mechanical and Electrical Equipment Manufacturing Plant was approved by the Ministry of Metallurgy in October 1990 in Zhangjiakou. Including experts and representatives from the steelmaking and ferroalloy industries