Home / Standards / GB/T 35845-2018 GB/T 35845-2018 Active Insulating mullite refractory bricks 莫来石质隔热耐火砖 Standard Type GBT ICS 81.080 CCS Q45 Status 现行 Issue Date 2018-02-06 Implementation 2019-01-01 Responsible Dept 国家标准委 Drafting Unit N/A