Home / Standards / GB/T 16947-2009 GB/T 16947-2009 Active Helical spring fatigue testing standard 螺旋弹簧疲劳试验规范 Standard Type GBT ICS 21.160 CCS J26 Status 现行 Issue Date 2009-03-16 Implementation 2009-11-01 Responsible Dept 国家标准委 Drafting Unit N/A