Home / Standards / GB/T 28924-2023 GB/T 28924-2023 Active Guides for calculating energy efficiency index for iron and steel enterprises 钢铁企业能效指数计算导则 Standard Type GBT ICS 77-010 CCS H04 Status 现行 Issue Date 2023-11-27 Implementation 2024-06-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A