
Safety Of Household And Similar Electrical Appliances - Particular Requirements For Battery Powered Toothbrushes And Their Charging And Battery Assemblies
出版:International Electrotechnical Committee

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Safety Of Household And Similar Electrical Appliances - Particular Requirements For Battery Powered Toothbrushes And Their Charging And Battery Assemblies
出版:International Electrotechnical Committee
專家解讀視頻