Home / Standards / GB/T 18930-2020 GB/T 18930-2020 Active Terminology for refractories 耐火材料术语 Standard Type GBT ICS 81.080 CCS Q40 Status 现行 Issue Date 2020-06-02 Implementation 2021-05-01 Responsible Dept 国家标准委 Drafting Unit N/A