Home / Standards / GB/T 45681-2025 GB/T 45681-2025 Active General technical specification for repair welding of steel castings 铸钢件补焊通用技术规范 Standard Type GBT ICS 77.140.01 CCS J31 Status 现行 Issue Date 2025-05-30 Implementation 2025-12-01 Responsible Dept 国家标准委 Drafting Unit N/A