Home / Standards / GB/T 21953-2008 GB/T 21953-2008 Active Single point cutting tool - Corner radii 单刃刀具 刀尖圆弧半径 Standard Type GBT ICS 25.100.01 CCS J41 Status 现行 Issue Date 2008-06-03 Implementation 2009-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A