Home / Standards / GB/T 13476-2023 GB/T 13476-2023 Active Pretensioned spun concrete piles 先张法预应力混凝土管桩 Standard Type GBT ICS 91.100.30 CCS Q14 Status 现行 Issue Date 2023-08-06 Implementation 2024-03-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A