暗装跷板式两极开关 Flush-type Rocker Double-pole Switch

暗装倒扳式两极开关 Flush-type Tumbler Double-pole Switch

明装跷板式两极开关 Surface-type Rocker Double-pole Switch

明装倒扳式两极开关 Surface-type Tumbler Double-pole Switch

两极开关 two-photo pole switch

双触点两极开关 DOUBLE CONTACT BIPOLAR SWITCH