QJ 456-1979
Hard chrome coating technical conditions (English Version)
- Standard No.
- QJ 456-1979
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Aerospace
- Status
- 1989-08
- Replace By
- QJ 456-1988
- Latest
- QJ 456-1988
QJ 456-1979 history
- 1988 QJ 456-1988 Hard chrome coating technical conditions
- 1970 QJ 456-1979 Hard chrome coating technical conditions
