WJ 990-1977
Investment casting mold components for optical instruments Investment casting mold supports for optical instruments (English Version)
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WJ 990-1977
Standard No.
WJ 990-1977
Language
Chinese,
Available in English version
Release Date
1977
Published By
Professional Standard - Military and Civilian Products
Latest
WJ 990-1977
WJ 990-1977 history
1977
WJ 990-1977
Investment casting mold components for optical instruments Investment casting mold supports for optical instruments
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