DB21/T 3898-2023
Specifications for geological logging operations of surface coalbed methane wells in goaf areas of coal mines (English Version)
- Standard No.
- DB21/T 3898-2023
- Language
- Chinese, Available in English version
- Release Date
- 2023
- Published By
- Liaoning Provincial Standard of the People's Republic of China
- Lastest
- DB21/T 3898-2023
DB21/T 3898-2023 history
- 2023 DB21/T 3898-2023 Specifications for geological logging operations of surface coalbed methane wells in goaf areas of coal mines