Home / Standards / GB/T 969-2007 GB/T 969-2007 Active Technical specification for taps 丝锥技术条件 Standard Type GBT ICS 25.100.50 CCS J41 Status 现行 Issue Date 2007-07-26 Implementation 2007-12-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A