Home / Standards / GB/T 5825-1986 GB/T 5825-1986 Active Symbolic designation of direction of opening and closing and faces of doors and windows 建筑门窗扇开、关方向和开、关面的标志符号 Standard Type GBT ICS 91.060.50 CCS Q70 Status 现行 Issue Date 1986-01-31 Implementation 1986-11-01 Responsible Dept 住房城乡建设部 Drafting Unit N/A