Home / Standards / GB/T 22590 GB/T 22590 Active Refractory castables for rolling mill reheating furnace 轧钢加热炉用耐火浇注料 Standard Type GBT ICS 81.080 CCS Q 46 Status 现行 Issue Date 2021-08-20 Implementation 2022-03-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委