TB/T 1121-1998
Numbering principle of communication signal enterprise standard (English Version)

Standard No.

TB/T 1121-1998

Language

Chinese, Available in English version

Release Date

1998

Published By

Professional Standard - Railway

Latest

TB/T 1121-1998

Replace

TB 1121-1975

TB/T 1121-1998 history

• 1998 TB/T 1121-1998 Numbering principle of communication signal enterprise standard
• 0000 TB 1121-1975