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Stickmaker (
stickmaker
) wrote
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kengr
2021-04-11 02:45 pm (UTC)
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I believe that the ultrasonic plaque removers dentists use were developed from boiler descalers. (Ow? Maybe.)
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no subject
I believe that the ultrasonic plaque removers dentists use were developed from boiler descalers. (Ow? Maybe.)