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                   一位單控開(kāi)關(guān)                                                              二位單控開(kāi)關(guān)

                   一位雙控開(kāi)關(guān)                                                              二開(kāi)雙控開(kāi)關(guān)

                   一位多控開(kāi)關(guān)                       

                  三位單控開(kāi)關(guān)                                                         四位單控開(kāi)關(guān) 

                  三位雙控開(kāi)關(guān)                                                         四位雙控開(kāi)關(guān)

                                                    四位單控開(kāi)關(guān)

                                                    四位雙控開(kāi)關(guān)

                二位二、三極插座                                                      三位二、三極插座

                                                四位二、三極插座