Home / Standards / GB/T 8361-2021 GB/T 8361-2021 Active Ultrasonic testing method for the surface of cold drawn round steel 冷拉圆钢表面超声检测方法 Standard Type GBT ICS 77.040.20 CCS H26 Status 现行 Issue Date 2021-04-30 Implementation 2021-11-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A