Home / Standards / DL/T 541-2014 DL/T 541-2014 Abolished 钢熔化焊T形接头和角接接头焊缝射线照相和质量分级 Standard Type DL ICS N/A CCS N/A Status Abolished Issue Date 2014-03-18 Implementation 2014-08-01 Centralized Committee 国家能源局 Issuing Authority 国家能源局