Home / Standards / GB/T 25779-2010 GB/T 25779-2010 Active Loadbearing concrete perforated bricks 承重混凝土多孔砖 Standard Type GBT ICS 91.100.30 CCS Q14 Status 现行 Issue Date 2010-12-23 Implementation 2011-11-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A