JB/ZQ 4489-2006
Blank flanges (PN20) (English Version)
- Standard No.
- JB/ZQ 4489-2006
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Machinery
- Latest
- JB/ZQ 4489-2006
- Replace
- JB/ZQ 4489-1997
- Scope
- This standard is applicable to flange covers with nominal pressure PN20 and medium temperature of -25~+180℃.
JB/ZQ 4489-2006 history
- 1970 JB/ZQ 4489-2006 Blank flanges (PN20)
- 0000 JB/ZQ 4489-1997
