SWRCH18A冷镦钢表面疑似裂纹分析
刘金源, 董凤奎
Analysis of suspected crack on surface of cold heading steel SWRCH18A
LIU Jin-yuan, DONG Feng-kui
中国钢铁期刊网 . 2015, (4): 32 -35 .  DOI: 10.13228/j.boyuan.issn1001-0777.20140062