JY 22-1987
small motor model (English Version)

Standard No.

JY 22-1987

Language

Chinese, Available in English version

Published By

Professional Standard - Education

Status

Be replaced 2013-07

Replace By

JY 23-1979

JY/T 0022-2011

Latest

JY 23-1979

JY/T 0022-2011

JY 22-1987 history

• 1970 JY 22-1987 small motor model
• 0000 JY 23-1979