Home / Standards / GB/T 23449-2009 GB/T 23449-2009 Active Hollow concrete panel contained solid wastes for partition wall 灰渣混凝土空心隔墙板 Standard Type GBT ICS 91.060.10 CCS Q15 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