ICS27.100CCS F24DL中华人民共和国电力行业标准DL/T1105.1-2020代替DL/T1105.1-2009电站锅炉集箱小口径接管座角焊缝无损检测技术导则第1部分：通用要求The technical guideline of non-destructive inspection for fillet weldsof small diameter nozzle stubs on boiler headers in power stations-Part 1:General requirements2020-10-23发布2021-02-01实施国家能源局发布
