Home / Standards / GB/T 18931-2008 GB/T 18931-2008 Abolished Classification of basic dense shaped refractory products containing less than 7% residual carbon 残碳量小于7%的碱性致密定形耐火制品分类 Standard Type GBT ICS 81.080 CCS Q40 Status 废止 Issue Date 2008-05-08 Implementation 2008-11-01 Responsible Dept 国家标准委 Drafting Unit N/A