Home / Standards / GB/T 11968-2020 GB/T 11968-2020 Active Autoclaved aerated concrete blocks 蒸压加气混凝土砌块 Standard Type GBT ICS 91.100.30 CCS Q14 Status 现行 Issue Date 2020-09-29 Implementation 2021-08-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A