Home / Standards / GB/T 1443-1996 GB/T 1443-1996 Abolished Machine tools--Self-holding tapers for tool shanks 机床和工具柄用自夹圆锥 Standard Type GBT ICS 25.140.30 CCS J41 Status 废止 Issue Date 1996-07-05 Implementation 1997-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A