Home / Standards / GB/T 4111-2013 GB/T 4111-2013 Active Test methods for the concrete block & brick 混凝土砌块和砖试验方法 Standard Type GBT ICS 91.060.10 CCS Q15 Status 现行 Issue Date 2013-12-31 Implementation 2014-09-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A