2014WJ/T 409-2014 Specification for degreasing wipes for optical instruments
1994WJ 409-1994 Specification for degreasing wipes for optical instruments
0000 WJ 409-1965
WJ 409-1994 Specification for degreasing wipes for optical instruments was changed to WJ/T 409-2014 Specification for degreasing wipes for optical instruments.