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15A 125V US 3 Holes Power Plug, Keenso Waterproof 3 Poles Power Plug Industry US Power Plug Connector Industrial Grade (20A 125V) Connector
Why do US power plugs have holes in them? Why are they different sizes when in Europe, both sides are the same size? - Quora
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(10Pcs) Hongkong UK 3 Holes to US 1-15R 2 pin Plug Socket AC Power Charger Adapter Converter,UK to US Travel Switch Socket,American US Plug 2 pins can ...
Why do US power plugs have holes in them? Why are they different sizes when in Europe, both sides are the same size? - Quora
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