Home / Standards / GB/T 23480.1-2009 GB/T 23480.1-2009 Abolished Electrical discharge small-hole high-speed drilling machines — Part 1: Terminology and accuracy testing 电火花小孔高速加工机床 第1部分:术语和精度检验 Standard Type GBT ICS 25.080.99 CCS J59 Status 废止 Issue Date 2022-12-28 Implementation 2009-11-01 Responsible Dept N/A Drafting Unit N/A