QJ 477-1979
Zinc salt phosphating film technical conditions (English Version)
- Standard No.
- QJ 477-1979
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Aerospace
- Status
- 1989-08
- Replace By
- QJ 477-1988
- Latest
- QJ 477-1988
QJ 477-1979 history
- 1988 QJ 477-1988 Zinc salt phosphating film technical conditions
- 1970 QJ 477-1979 Zinc salt phosphating film technical conditions
