China National Standards

China hydrosulfide GB Standards List

  •  China "hydrosulfide" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 23937-2020 Sodium hydrosulfide for industrial use
    工业硫氢化钠    		 China National Standards
    hydrosulfide
    English PDF
    GB 23937-2009 Sodium hydrosulfide for industrial use
    工业硫氢化钠    		 China National Standards
    hydrosulfide
    English PDF

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