JJG 2055-1990
Verification Scheme of Helix Measuring Instruments of Gear (English Version)

Standard No.

JJG 2055-1990

Language

Chinese, Available in English version

Release Date

1990

Published By

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

Latest

JJG 2055-1990

JJG 2055-1990 history

• 1990 JJG 2055-1990 Verification Scheme of Helix Measuring Instruments of Gear