JJG 031-2020
Propeller Velocimeter (English Version)

Standard No.

JJG 031-2020

Language

Chinese, Available in English version

Published By

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

Latest

JJG 031-2020

JJG 031-2020 history

• 1970 JJG 031-2020 Propeller Velocimeter