Home / Standards / GB/T 29711-2023 GB/T 29711-2023 Active Non-destructive testing of welds—Ultrasonic testing—Characterization of discontinuities in welds 焊缝无损检测 超声检测 焊缝内部不连续的特征 Standard Type GBT ICS 25.160.40 CCS J33 Status 现行 Issue Date 2023-11-27 Implementation 2024-06-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A