Home / Standards / GB/T 20491-2006 GB/T 20491-2006 Abolished Steel slag powder used for cement and concrete 用于水泥和混凝土中的钢渣粉 Standard Type GBT ICS 73.080 CCS H31 Status 废止 Issue Date 2006-09-12 Implementation 2007-02-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A