JY 176-1986
Vibration tuning fork (trial) (English Version)
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JY 176-1986
Standard No.
JY 176-1986
Language
Chinese,
Available in English version
Published By
Professional Standard - Education
Latest
JY 176-1986
JY 176-1986 history
1970
JY 176-1986
Vibration tuning fork (trial)
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