China National Standards

China size—Air GB Standards List

  •  China "size—Air" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 11107-2018 Metallic and its compound powder—Determination of specific surface and particle size—Air permeating method
    金属及其化合物粉末 比表面积和粒度测定 空气透过法    		 China National Standards
    size—Air
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