Home / Standards / GBT 39283-2020 GBT 39283-2020 Non-destructive testing—Electromagnetic acoustic transducer technology—Surface wave testing method 无损检测 电磁声换能器技术表面波检测方法 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A