China National Standards

China 1，1，1，2 GB Standards List

  •  China "1，1，1，2" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 18826-2002 1，1，1，2-Tetrafluoroethane for industrial use
    工业用1，1，1，2-四氟乙烷(HFC-134a)    		 China National Standards
    1，1，1，2
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