Home / Standards / GB/T 6472-2023 GB/T 6472-2023 Active Vertical internal broaching machines—Testing of the accuracy 立式内拉床 精度检验 Standard Type GBT ICS 25.080.30 CCS J57 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