China National Standards

China Diphenylmethane 4，4’ diisocyanate GB Standards List

  •  China "Diphenylmethane 4，4’ diisocyanate" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 13941-1992 Diphenylmethane 4，4’-diisocyanate
    二苯基甲烷4，4’-二异氰酸酯    		 China National Standards
    Diphenylmethane 4，4’ diisocyanate
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