GB/T 41275.21-2022
航空电子过程管理 含无铅焊料航空航天及国防电子系统 第21部分:向无铅电子过渡指南
Process management for avionics—Aerospace and defence electronic systems containing lead-free solder—Part 21:Guidelines for transition to lead-free electronics
GBT41275.21-2022, GB41275.21-2022