China National Standards

China Hygienic standard day GB Standards List

  •  China "Hygienic standard day" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB 7793-2010 Hygienic standard for day lighting and Artificial lighting for middle and elementary school
    中小学校教室采光和照明卫生标准    		 China National Standards
    Hygienic standard day
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