Home / Standards / GB/T 22131-2022 GB/T 22131-2022 Active Practice for ultrasonic examination from bored surfaces of cylindrical forgings 筒形锻件内表面超声波检测方法 Standard Type GBT ICS 77.140.85 CCS J32 Status 现行 Issue Date 2022-10-12 Implementation 2022-10-12 Responsible Dept 国家标准委 Drafting Unit N/A