Home / Standards / GB/T 37389-2019 GB/T 37389-2019 Active Guides for energy efficiency assessment of steel secondary refining process 炉外精炼工序能效评估导则 Standard Type GBT ICS 77-010 CCS H04 Status 现行 Issue Date 2019-03-25 Implementation 2020-02-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A