QJ 500-1989
Specifications for carbon steel and alloy structural steel forgings (English Version)
- Standard No.
- QJ 500-1989
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Aerospace
- Status
- Latest
- QJ 500-1989
- Replace By
- QJ 500A-1998
QJ 500-1989 history
- 1970 QJ 500-1989 Specifications for carbon steel and alloy structural steel forgings
- 1970 QJ 500-1980 Specifications for carbon steel and alloy structural steel forgings
