HG 20530-1992
Weld lip seal rings for steel pipe flanges (English Version)
- Standard No.
- HG 20530-1992
- Language
- Chinese, Available in English version
- Release Date
- 1993
- Published By
- Professional Standard - Chemical Industry
- Latest
- HG 20530-1992
HG 20530-1992 history
- 1993 HG 20530-1992 Weld lip seal rings for steel pipe flanges
