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带钢表面块状黑斑成因及对策
唐勤,刘靖群,董欣欣
Cause analysis and countermeasures for black block mark on surface of hot rolled strip
TANG Qin,LIU Jingqun,DONG Xinxin
轧钢 . 2019, (2): 73 -75 .  DOI: 10.13228/j.boyuan.issn1003-9996