Home / Standards / GB/T 41027-2021 GB/T 41027-2021 Active Aluminum alloy MJ thread with small flange blind hole self locking insert for aviation 航空用MJ螺纹铝合金带小凸缘盲孔自锁镶嵌件 Standard Type GBT ICS 49.030.99 CCS V20 Status 现行 Issue Date 2021-12-31 Implementation 2022-07-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委