DB31/T 1176-2019
Technical regulations for horizontal directional drilling engineering of urban gas pipelines (English Version)
- Standard No.
- DB31/T 1176-2019
- Language
- Chinese, Available in English version
- Release Date
- 2019
- Published By
- Shanghai Provincial Standard of the People's Republic of China
- Latest
- DB31/T 1176-2019
DB31/T 1176-2019 history
- 2019 DB31/T 1176-2019 Technical regulations for horizontal directional drilling engineering of urban gas pipelines
