Home / Standards / GB/T 21949.1-2008 GB/T 21949.1-2008 Active CNC universal tool milling machines - Part 1: Testing of the accuracy 数控万能工具铣床 第1部分:精度检验 Standard Type GBT ICS 25.080.20 CCS J54 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