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| PR-60PA |
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| Digital Refractometer for isopropyl alcohol |
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| PR-50HO |
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| Digital Refractometer for a water solution of hydrogen peroxide |
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| PET-109 |
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| Digital Refractometer for ethyl alcohol |
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| PR-100SA |
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| Digital Refractometer for salinity |
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| PR-40DMF |
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| Digital Refractometer for dimethylformamide |
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| PR-RI |
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| Digital Refractometer |
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