Home / Standards / GB/T 37400.9-2019 GB/T 37400.9-2019 Active Heavy mechanical general technical specification—Part 9:Machining parts 重型机械通用技术条件 第9部分:切削加工件 Standard Type GBT ICS 25.010 CCS J04 Status 现行 Issue Date 2019-03-25 Implementation 2019-10-01 Responsible Dept 国家标准委 Drafting Unit N/A