Home / Standards / GB/T 23458-2009 GB/T 23458-2009 Active Ceramic tile for plaza 广场用陶瓷砖 Standard Type GBT ICS 93.080.20 CCS Q31 Status 现行 Issue Date 2009-03-25 Implementation 2010-01-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A