Home / Standards / GB/T 47083-2026 GB/T 47083-2026 Upcoming Test method for thermal expansion rate of thin-walled tube of carbon fiber reinforced composite 碳纤维增强复合材料薄壁管件热膨胀率测试方法 Standard Type GBT ICS 83.120 CCS Q 23 Status 即将实施 Issue Date 2026-01-28 Implementation 2026-08-01 Responsible Dept 国家标准委 Drafting Unit N/A