答：Unused battery anode surface of water droplets...
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CR1620Button batteries
Model：CR1620
Introduction：CR1620Button 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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CR2032 Welding foot battery
Model：CR2032
Introduction：CR2032 battery fillet, mainly for light-emitting toys, flashlights, watches, electronic watches, movement, electronic gifts, electronic calendar, ear hearing aids, calculators, instruments. Medical equipment...
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CR2025 Welding foot battery
Model：CR2025
Introduction：CR2025 battery fillet, mainly for light-emitting toys, flashlights, watches, electronic watches, movement, electronic gifts, electronic calendar, ear hearing aids, calculators, instruments. Medical equipment...
CR2016 Welding foot battery
Model：CR2016
Introduction：CR2016 battery fillet, mainly for light-emitting toys, flashlights, watches, electronic watches, movement, electronic gifts, electronic calendar, ear hearing aids, calculators, instruments. Medical equipment...
CR2477 Welding foot battery
Model：CR2477
Introduction：CR2477 Welding foot battery,mainly for light-emitting toys, flashlights, watches, electronic watches, movement, electronic gifts, electronic calendar, ear hearing aids, calculators, instruments. Medical equipment...