JY 58-1980
Globe Technical Conditions (Trial) (English Version)
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JY 58-1980
Standard No.
JY 58-1980
Language
Chinese,
Available in English version
Published By
Professional Standard - Education
Latest
JY 58-1980
JY 58-1980 history
1970
JY 58-1980
Globe Technical Conditions (Trial)
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