Home / Standards / GB/T 45470-2025 GB/T 45470-2025 Active Recycled carbon fiber for cement concrete 水泥混凝土用回收碳纤维 Standard Type GBT ICS 59.100.20 CCS Q 53 Status 现行 Issue Date 2025-03-28 Implementation 2025-10-01 Responsible Dept 国家标准委 Drafting Unit N/A