Home / Standards / GB/T 40724-2021 GB/T 40724-2021 Active Terminology for carbon fiber and carbon fiber composites 碳纤维及其复合材料术语 Standard Type GBT ICS 59.100.20 CCS Q53 Status 现行 Issue Date 2021-10-11 Implementation 2022-05-01 Responsible Dept 国家标准委 Drafting Unit N/A