QJ 477-1988
Zinc salt phosphating film technical conditions (English Version)
- Standard No.
- QJ 477-1988
- Language
- Chinese, Available in English version
- Release Date
- 1988
- Published By
- Professional Standard - Aerospace
- Latest
- QJ 477-1988
- Replace
- QJ 477-1979
QJ 477-1988 history
- 1988 QJ 477-1988 Zinc salt phosphating film technical conditions
- 1970 QJ 477-1979 Zinc salt phosphating film technical conditions
