China National Standards

China Industry reference carbon GB Standards List

  •  China "Industry reference carbon" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 9578-2021 Industry reference carbon black 4#
    工业参比炭黑4#    		 China National Standards
    Industry reference carbon
    English PDF
    GB/T 9578-2011 Industry reference carbon black 4#
    工业参比炭黑4#    		 China National Standards
    Industry reference carbon
    English PDF

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