JB/T 13292-2017
35mm and 70mm film projection objective lenses and objective lens holder dimensions (English Version)

Standard No.

JB/T 13292-2017

Language

Chinese, Available in English version

Release Date

2017

Published By

工业和信息化部/国家能源局

Latest

JB/T 13292-2017

JB/T 13292-2017 history

• 2017 JB/T 13292-2017 35mm and 70mm film projection objective lenses and objective lens holder dimensions