Home / Standards / GBT 31213.2-2014 GBT 31213.2-2014 Non-destructive testing—Testing of cast iron components—Part 2: Acousto-ultrasonic testing method 无损检测 铸铁构件检测 第2部分:声超声检测方法 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