QJ 2905-1997
Heat treatment for machining copper and copper alloys (English Version)
- Standard No.
- QJ 2905-1997
- Language
- Chinese, Available in English version
- Release Date
- 1997
- Published By
- Professional Standard - Aerospace
- Latest
- QJ 2905-1997
- Replace
- QJ 1436-1988 QJ 1704-1989
QJ 2905-1997 history
- 1997 QJ 2905-1997 Heat treatment for machining copper and copper alloys
- 0000 QJ 1704-1989
- 1970 QJ 1436-1988
QJ 2905-1997 Heat treatment for machining copper and copper alloys has been changed from QJ 1436-1988 .
