Home / Standards / GB/T 18930-2002 GB/T 18930-2002 Abolished Terminology for refractories 耐火材料术语 Standard Type GBT ICS 81.080 CCS Q40 Status 废止 Issue Date 2002-12-31 Implementation 2003-06-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委