QJ 206-1977
Screw-in pipe joint connection seat type and size (English Version)
- Standard No.
- QJ 206-1977
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Aerospace
- Status
- Latest
- QJ 206-1977
QJ 206-1977 history
- 1970 QJ 206-1977 Screw-in pipe joint connection seat type and size
