Home / Standards / GB/T 38978-2020 GB/T 38978-2020 Active Refractory products—Determination of stress-strain (three-point bending method) 耐火材料 应力应变试验方法(三点弯曲法) Standard Type GBT ICS 81.080 CCS Q40 Status 现行 Issue Date 2020-07-21 Implementation 2021-06-01 Responsible Dept 国家标准委 Drafting Unit N/A