Home / Standards / GB/T 4018.1-1997 GB/T 4018.1-1997 Active Pillar type vertical drilling machines--Testing of the accuracy--Part 1:Testing of the geometric accuracy 圆柱立式钻床 精度检验 第1部分:几何精度检验 Standard Type GBT ICS 25.080.40 CCS J54 Status 现行 Issue Date 1997-11-13 Implementation 1998-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A