Home / Standards / GBT 27664.3-2012 GBT 27664.3-2012 Non-destructive testing — Performance and verification of ultrasonic testing equipment — Part 3: Combined equipment 无损检测 超声检测设备的性能与检验 第3部分组合设备 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