Home / Standards / GB/T 33544-2017 GB/T 33544-2017 Active Glass fiber and magnesium cement board 玻镁平板 Standard Type GBT ICS 91.100.30 CCS Q14 Status 现行 Issue Date 2017-03-09 Implementation 2018-02-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A