Home / Standards / GB/T 1127-2023 GB/T 1127-2023 Active Woodruff keyseat cutters 半圆键槽铣刀 Standard Type GBT ICS 25.100.20 CCS J41 Status 现行 Issue Date 2023-09-07 Implementation 2024-04-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A