Home / Standards / GB/T 3995-2014 GB/T 3995-2014 Active Insulating high alumina refractory bricks 高铝质隔热耐火砖 Standard Type GBT ICS 81.080 CCS Q45 Status 现行 Issue Date 2014-07-24 Implementation 2015-02-01 Responsible Dept 国家标准委 Drafting Unit N/A