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45钢圆钢热顶锻开裂原因分析及改进措施
黎立璋
Causes analysis of hot heading cracking of 45 steel round bar and its countermeasures
LI Lizhang
轧钢 . 2020, (2): 50 -55 .  DOI: 10.13228/j.boyuan.issn1003-9996.20200027