China National Standards

China content—Microscopical GB Standards List

  •  China "content—Microscopical" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 38396-2019 Pitch products of coal carbonization—Determination of mesophase content—Microscopical analysis by reflected light
    焦化沥青类产品 中间相含量的测定 光反射显微分析方法    		 China National Standards
    content—Microscopical
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