Home / Standards / GB/T 33969-2017 GB/T 33969-2017 Active Technical specification for injecting pulverized coal with oxygen-enriched into blast furnace 高炉富氧喷煤技术规范 Standard Type GBT ICS 77.080 CCS H04 Status 现行 Issue Date 2017-07-12 Implementation 2018-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A