SJ 3191-1989
Double ball valve for pipe (English Version)
- Standard No.
- SJ 3191-1989
- Language
- Chinese, Available in English version
- Release Date
- 1989
- Published By
- Professional Standard - Electron
- Latest
- SJ 3191-1989
SJ 3191-1989 history
- 1989 SJ 3191-1989 Double ball valve for pipe
