China National Standards

China residue―Ring GB Standards List

  •  China "residue―Ring" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 30043-2013 Coal direct liquefaction―Determination of softening point of liquefaction residue―Ring and ball apparatus
    煤炭直接液化　液化残渣软化点的测定 环球法    		 China National Standards
    residue―Ring
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