... quality system certificate of many countries. Rotary Switches for Electrical Fans,microwave oven,oven,toaster,broiler,etc,home appliances Specifications 1)Contact Resistance ≤20m ... in household electrical equipments and office facility , the multimedia products and the electromotional instruments field etc. Rotary Switches for Electrical Fans,microwave oven,oven,toaster,broiler,etc ...