Home / Standards / GB/T 24601 GB/T 24601 Active Tilt and turn hardware system for building windows 建筑窗用内平开下悬五金系统 Standard Type GBT ICS 91.060.50 CCS Q 73 Status 现行 Issue Date 2024-08-23 Implementation 2025-03-01 Responsible Dept 住房城乡建设部 Drafting Unit 住房城乡建设部