Home / Standards / GB/T 23444-2024 GB/T 23444-2024 Active Metal and metal-composite ceilings 金属及金属复合材料吊顶板 Standard Type GBT ICS 91.060 CCS Q73 Status 现行 Issue Date 2024-10-26 Implementation 2025-05-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A