Home / Standards / GB/T 26648-2026 GB/T 26648-2026 Upcoming Austenitic iron castings 奥氏体铸铁件 Standard Type GBT ICS 77.080.10 CCS J31 Status 即将实施 Issue Date 2026-02-27 Implementation 2026-09-01 Responsible Dept 国家标准委 Drafting Unit N/A