GB/T 39789-2021焊缝无损检测金属复合材料焊缝涡流视频集成检测方法标准
英文:Non-destructive testing of welds—Eddy current-video integrated testing method of metal composites weld GB/T 39789-202...
英文:Non-destructive testing of welds—Eddy current-video integrated testing method of metal composites weld GB/T 39789-202...