Home / Standards / GB/T 33499-2017 GB/T 33499-2017 Active The steel frame composite panels made from foamed cement 钢框架发泡水泥芯材复合板 Standard Type GBT ICS 91.100.99 CCS Q10 Status 现行 Issue Date 2017-02-28 Implementation 2018-01-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A