Home / Standards / GB/T 5101-2017 GB/T 5101-2017 Active Fired common bricks 烧结普通砖 Standard Type GBT ICS 91.100.15 CCS Q15 Status 现行 Issue Date 2017-12-29 Implementation 2018-11-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A