Home / Standards / GB/T 5291.2-2022 GB/T 5291.2-2022 Active Die sinking electro-discharge machines—Testing of the accuracy—Part 2:Double-column machines (slide-head type) 电火花成形机床 精度检验 第2部分：双立柱机床（移动主轴头型） Standard Type GBT ICS 25.080.99 CCS J59 Status 现行 Issue Date 2022-12-30 Implementation 2022-12-30 Responsible Dept 中国机械工业联合会 Drafting Unit N/A