Home / Standards / GB/T 40398.2-2021 GB/T 40398.2-2021 Active Test method for C-C composites—Part 2: Flexural properties 炭-炭复合炭素材料试验方法 第2部分:弯曲性能试验 Standard Type GBT ICS 29.050 CCS Q50 Status 现行 Issue Date 2021-08-20 Implementation 2022-03-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A