Home / Standards / GB/T 968-1994 GB/T 968-1994 Abolished Manufacturing tolerances on the threaded portion of taps 丝锥螺纹公差 Standard Type GBT ICS 25.100.50 CCS J41 Status 废止 Issue Date 1994-12-20 Implementation 1995-09-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A