QJ 2920-1997
Bottom hole diameter before MJ internal thread tapping (English Version)
- Standard No.
- QJ 2920-1997
- Language
- Chinese, Available in English version
- Release Date
- 1997
- Published By
- Professional Standard - Aerospace
- Latest
- QJ 2920-1997
QJ 2920-1997 history
- 1997 QJ 2920-1997 Bottom hole diameter before MJ internal thread tapping
