DB41/ 772-2012
Specifications for safety inspection and inspection of ventilator systems in use in metal and nonmetal underground mines (English Version)
- Standard No.
- DB41/ 772-2012
- Language
- Chinese, Available in English version
- Release Date
- 2012
- Published By
- Henan Provincial Standard of the People's Republic of China
- Status
- 2020-03
- Latest
- DB41/ 772-2012
DB41/ 772-2012 history
- 2012 DB41/ 772-2012 Specifications for safety inspection and inspection of ventilator systems in use in metal and nonmetal underground mines
