Home / Standards / GB/T 40715-2021 GB/T 40715-2021 Active Specification of precast concrete curtain wall panel 装配式混凝土幕墙板技术条件 Standard Type GBT ICS 91.060.10 CCS P32 Status 现行 Issue Date 2021-10-11 Implementation 2022-05-01 Responsible Dept 住房城乡建设部 Drafting Unit N/A