China National Standards

China Specifications air source GB Standards List

  •  China "Specifications air source" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 23889-2009 Specifications of air source heat pump assisted domestic solar water heating systems
    家用空气源热泵辅助型太阳能热水系统技术条件    		 China National Standards
    Specifications air source
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