Home / Standards / GB/T 28389.1-2012 GB/T 28389.1-2012 Active Auto index milling head with axes A,C of main drive - Part 1: Testing of accuracy 主传动驱动型AC轴自动分度铣头 第1部分:精度检验 Standard Type GBT ICS 25.060.20 CCS J52 Status 现行 Issue Date 2012-05-11 Implementation 2012-10-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A