DB11/T 420-2019
Elevator installation, modification, major repair and maintenance self-inspection rules (English Version)
- Standard No.
- DB11/T 420-2019
- Language
- Chinese, Available in English version
- Release Date
- 2019
- Published By
- Beijing Provincial Standard of the People's Republic of China
- Latest
- DB11/T 420-2019
- Replace
- DB11/ 420-2007
DB11/T 420-2019 history
- 2019 DB11/T 420-2019 Elevator installation, modification, major repair and maintenance self-inspection rules
- 2007 DB11/ 420-2007 Self-inspection rules for the installation，modification，important
DB11/T 420-2019 Elevator installation, modification, major repair and maintenance self-inspection rules has been changed from DB11/ 420-2007 Self-inspection rules for the installation，modification，important.
