Home / Standards / GB/T 27792-2011 GB/T 27792-2011 Active Classification for laminated composite gasket materials 层压复合垫片材料分类 Standard Type GBT ICS 23.040.80 CCS Q69 Status 现行 Issue Date 2011-12-30 Implementation 2012-08-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A