JY 20-1985
Motor principle description (English Version)

Standard No.

JY 20-1985

Language

Chinese, Available in English version

Published By

Professional Standard - Education

Status

Withdraw

Replace By

JY 20-1979

Latest

JY 20-1979

JY 20-1985 history

• 1970 JY 20-1985 Motor principle description
• 0000 JY 20-1979