JJG(机械) 11-1990
Verification Regulations for JD-4 Grounding Resistance Tester Verification Device (English Version)
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JJG(机械) 11-1990
Standard No.
JJG(机械) 11-1990
Language
Chinese,
Available in English version
Release Date
1990
Published By
National Metrological Verification Regulations of the People's Republic of China
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