Home / Standards / GB/T 20473-2021 GB/T 20473-2021 Active Dry-mixed thermal insulating mortar for buildings 建筑保温砂浆 Standard Type GBT ICS 91.100.60 CCS Q25 Status 现行 Issue Date 2021-08-20 Implementation 2022-03-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A