Home / Standards / GB 21256-2025 GB 21256-2025 Upcoming Norm of energy consumption per unit production of main individual-process of crude steel manufacturing process 粗钢生产主要工序单位产品能源消耗限额 Standard Type GB ICS 27.010 CCS F01 Status 即将实施 Issue Date 2025-06-30 Implementation 2026-07-01 Responsible Dept 国家标准委 Drafting Unit N/A