答：Unused battery anode surface of water droplets...
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CR2032Button batteries
Model：CR2032
Introduction：CR2032Button batteries, mainly for the luminous gifts and toys, flashlights, watches, electronic watches, movement, electronic gifts, electronic calendar, ear hearing aids, calculators...
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CR2025Button batteries
Model：CR2025
Introduction：CR2025Button batteries,mainly for the luminous gifts and toys, flashlights, watches, electronic watches, movement, electronic gifts, electronic calendar, ear hearing aids, calculators....
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CR2016Button batteries
Model：CR2016
Introduction：CR2016Button batteries,mainly for the luminous gifts and toys, flashlights, watches, electronic watches, movement, electronic gifts, electronic calendar, ear hearing aids, calculators...
CR1220Mercury-free batteries
Model：CR1220
Introduction：CR1220Button batteries,mainly for the luminous gifts and toys, flashlights, watches, electronic watches, movement, electronic gifts, electronic calendar, ear hearing aids, calculators...
CR927Button batteries
Model：CR927
Introduction：CR927Button batteries,mainly for the luminous gifts and toys, flashlights, watches, electronic watches, movement, electronic gifts, electronic calendar, ear hearing aids, calculators...