Home / Standards / GBT 28704-2012 GBT 28704-2012 Non-destructive testing — Magnetostrictive ultrasonic guided wave testing method 无损检测 磁致伸缩超声导波检测方法 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