风电法兰用钢S355NL探伤不合格分析
刘 兵
Defective analysis on flaw detection of S355NL steel for wind power flange
LIU Bing
中国钢铁期刊网 . 2016, (2): 38 -41 .  DOI: 10.13228/j.boyuan.issn1001-0777.20150037