WJ 981-1977
Optical instrument investment casting mold parts Optical instrument investment casting mold edge block (English Version)

Standard No.

WJ 981-1977

Language

Chinese, Available in English version

Release Date

1977

Published By

Professional Standard - Military and Civilian Products

Latest

WJ 981-1977

WJ 981-1977 history

• 1977 WJ 981-1977 Optical instrument investment casting mold parts Optical instrument investment casting mold edge block