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大连钢厂和北京钢铁研究总院承担的《M_2钢丝赶超日立水平》的课题,针对 M_2 钢丝的主要差距提出五项攻关指标:(1)轧制钻头裂纹率小于3%;(2)钢丝的
Dalian Steel and Beijing Iron and Steel Research Institute undertook the “M_2 steel catch-up Hitachi level” issue, the main gap for M_2 steel put forward five key indicators: (1) rolling bit crack rate of less than 3%; (2) of