WJ 991-1977
Optical Instruments Investment Casting Mold Components Optical Instruments Investment Casting Mold Cylindrical Pins (English Version)

Standard No.

WJ 991-1977

Language

Chinese, Available in English version

Release Date

1977

Published By

Professional Standard - Military and Civilian Products

Latest

WJ 991-1977

WJ 991-1977 history

• 1977 WJ 991-1977 Optical Instruments Investment Casting Mold Components Optical Instruments Investment Casting Mold Cylindrical Pins