TB/T 2471-2021
crossing signal (English Version)
- Standard No.
- TB/T 2471-2021
- Language
- Chinese, Available in English version
- Release Date
- 2021
- Published By
- 国家铁路局
- Latest
- TB/T 2471-2021
- Replace
- TB/T 2471-1993
TB/T 2471-2021 history
- 2021 TB/T 2471-2021 crossing signal
- 1993 TB/T 2471-1993 DK·X3 crossing signal machine
