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- High Insulation Resistance Meter
- JJG 690-1990
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- Measuring Apparatus for Dust Contentin Stack
- JJG 680-1990
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- Verification Regulation of The Bomb Calorimeler
- JJG 672-2001
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- Load Cell
- JJG 669-2003
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- V.R.of liquid positive displacement flow meter
- JJG 667-1997