S355NL耐低温热轧H型钢焊接接头组织性能分析
杨栋,李超
 Analysis of microstructure and property of welded joint on S355NL 
hot rolled H-shaped steel with resistance to low temperature
YANG Dong,LI Chao
物理测试 . 2022, (3): 23 -26 .  DOI: 10.13228/j.boyuan.issn1001-0777.20210063