Home / Standards / GB 4452-2011 GB 4452-2011 Active Outdoor fire hydrant 室外消火栓 Standard Type GB ICS 13.220.10 CCS C84 Status 现行 Issue Date 2011-12-30 Implementation 2012-06-01 Responsible Dept 国家消防救援局 Drafting Unit 国家消防救援局