Home / Standards / GBT 15579.14-2021 GBT 15579.14-2021 Arc welding equipment — Part 14: Calibration, validation and consistency testing 弧焊设备 第14部分:校准、确认和一致性试验 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