China National Standards

China Comparison contrast ratio GB Standards List

  •  China "Comparison contrast ratio" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 5211.17-1988 Comparison of contrast ratio(hiding power)of white pigments
    白色颜料对比率(遮盖力)的比较    		 China National Standards
    Comparison contrast ratio
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