Home / Standards / GBT 38952-2020 GBT 38952-2020 Non-destructive testing — Ultrasonic bulk wave method for residual stress measurement 无损检测 残余应力超声体波检测方法 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