Home / Standards / GB/T 27692-2011 GB/T 27692-2011 Abolished Acidity iron pellet for blast furnace 高炉用酸性铁球团矿 Standard Type GBT ICS 73.060.10 CCS D31 Status 废止 Issue Date 2011-12-30 Implementation 2012-10-01 Responsible Dept 中国钢铁工业协会 Drafting Unit 中国钢铁工业协会