SY/T 0452-2021
Welding process assessment of oil and gas metal pipelines (English Version)
- Standard No.
- SY/T 0452-2021
- Language
- Chinese, Available in English version
- Release Date
- 2021
- Published By
- 国家能源局
- Latest
- SY/T 0452-2021
- Replace
- SY/T 0452-2012
SY/T 0452-2021 history
- 2021 SY/T 0452-2021 Welding process assessment of oil and gas metal pipelines
- 2012 SY/T 0452-2012 Standard for welding procedure qualification of oil and gas metal pipeline
- 2002 SY/T 0452-2002 Standard for weld procedure qualification of oil and gas metal pipeline
