SHJ 509-1988
Welding procedure qualification for petrochemical engineering (English Version)
- Standard No.
- SHJ 509-1988
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Petrochemical Industry
- Status
- Latest
- SHJ 509-1988
SHJ 509-1988 history
- 1970 SHJ 509-1988 Welding procedure qualification for petrochemical engineering
