JY 179-1985
Glass with silk, plexiglass with silk, glue stick with fur, polycarbonate stick with fur (English Version)

Standard No.

JY 179-1985

Language

Chinese, Available in English version

Published By

Professional Standard - Education

Latest

JY 179-1985

JY 179-1985 history

• 1970 JY 179-1985 Glass with silk, plexiglass with silk, glue stick with fur, polycarbonate stick with fur