Home / Standards / GB/T 27979-2011 GB/T 27979-2011 Active Alumina ceramic wear-resistant composite lining board 氧化铝耐磨陶瓷复合衬板 Standard Type GBT ICS 81.060.30 CCS Q32 Status 现行 Issue Date 2011-12-30 Implementation 2012-10-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A