QJ/Z 74-1979
Copper and copper alloy passivation film production instructions (English Version)
- Standard No.
- QJ/Z 74-1979
- Language
- Chinese, Available in English version
- Release Date
- 1979
- Published By
- Professional Standard - Aerospace
- Latest
- QJ/Z 74-1979
QJ/Z 74-1979 history
- 1979 QJ/Z 74-1979 Copper and copper alloy passivation film production instructions
