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'closets'
China GB Standards List

 GB 38448-2019  
Minimum allowable values and grades of the energy efficiency and water efficiency for smart water closets
智能坐便器能效水效限定值及等级
 GB 25502-2017  
Minimum allowable values of water efficiency and water efficiency grades for water closets
坐便器水效限定值及水效等级
 GB 28379-2012  
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
 GB 25502-2010  
Minimum allowable values of water efficiency and water efficiency grades for water closets
坐便器用水效率限定值及用水效率等级

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