ISO 4520:1981现行
Chromate conversion coatings on electroplated zinc and cadmium coatings
出版：International Organization for Standardization
专家解读视频
SNV ISO 4520:1981 - Identical
JIS H 8625:1993 - Equivalent
NBN EN 286-4:1994 - Identical
NBN EN 28738:1992 - Identical
NBN EN 28737:1992 - Identical
NBN EN 28736:1992 - Identical
UNI ISO 4520:1987 - Identical
NS ISO 4520 Ed. 1 (1992) - Identical
NFA 91 472:1980 - Equivalent
BS 6338:1982 - Equivalent
UNE 112050:1994 - Identical
SS ISO 4520 Ed. 1 (1982) - Identical
