Home / Standards / GBT 39789-2021 GBT 39789-2021 Non-destructive testing of welds — Eddy current video integrated testing method for metal composite material welds 焊缝无损检测 金属复合材料焊缝涡流视频集成检测方法 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