JJG 153-2020
Mechanical hole detector[ (English Version)

Standard No.

JJG 153-2020

Language

Chinese, Available in English version

Published By

National Metrological Verification Regulations of the People's Republic of China

Latest

JJG 153-2020

JJG 153-2020 history

• 1970 JJG 153-2020 Mechanical hole detector[
• 1996 JJG 153-1996 Verification Regulation of Standard Cell