Home / Standards / GB/T 38704-2020 GB/T 38704-2020 Active Frame system of timber supporting curtain wall 建筑木框架幕墙组件 Standard Type GBT ICS 91.060.10 CCS P32 Status 现行 Issue Date 2020-03-31 Implementation 2021-02-01 Responsible Dept 住房城乡建设部 Drafting Unit N/A