Home / Standards / GB 28379-2012 GB 28379-2012 Abolished Minimum allowable values of water efficiency and water efficiency grades for flush valve for water closets 便器冲洗阀用水效率限定值及用水效率等级 Standard Type GB ICS 91.060 CCS Y71 Status 废止 Issue Date 2012-05-11 Implementation 2013-04-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委