Home / Standards / GB/T 46752-2025 GB/T 46752-2025 Active Integrated high-efficiency air conditioning cold source system for buildings 建筑整体式高效空调冷源系统 Standard Type GBT ICS 91.140.30 CCS P48 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 住房城乡建设部 Drafting Unit N/A