YD/T 607-1992
Life test method for relays used in vertical and horizontal telephone exchanges (English Version)

Standard No.

YD/T 607-1992

Language

Chinese, Available in English version

Release Date

1992

Published By

邮电部

Latest

YD/T 607-1992

YD/T 607-1992 history

• 1992 YD/T 607-1992 Life test method for relays used in vertical and horizontal telephone exchanges