Home / Standards / GB/T 43321-2023 GB/T 43321-2023 Active Recommended brazing procedure specification for copper and copper alloys 铜及铜合金钎焊推荐工艺规范 Standard Type GBT ICS 25.160.50 CCS J33 Status 现行 Issue Date 2023-11-27 Implementation 2024-06-01 Responsible Dept 国家标准委 Drafting Unit N/A