TB 2130.6-1990
Technical requirements and test methods for train dispatching telephone extensions (English Version)

Standard No.

TB 2130.6-1990

Language

Chinese, Available in English version

Release Date

1990

Published By

Professional Standard - Railway

Latest

TB 2130.6-1990

TB 2130.6-1990 history

• 1990 TB 2130.6-1990 Technical requirements and test methods for train dispatching telephone extensions