Home / Standards / GB/T 41966-2022 GB/T 41966-2022 Active Ultrasonic phased array testing method for seamless steel tubes 无缝钢管相控阵超声检测方法 Standard Type GBT ICS 77.040.20 CCS H26 Status 现行 Issue Date 2022-12-30 Implementation 2023-07-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A