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Keywords from Image Description:
E type plug with key with one pin. en The key glued to the standard plug allows to connect to mains sockets dedicated for special purposes ITequipment Used in Poland pl Specjalny klucz doklejony do standardowej wtyczki umoliwia podczenie do gniazdek elektrycznych przeznaczonych do zaopatrywania okrelonych grup urzdze np sprztu komputerowego