... .55-3. Appliance to:Exhaust system assembly series: can be used for automobile electronic igniter, exhaust gas/purifier/heater ... pipe/tips, strut bar, auto accessories, etcHousehold series: can be used for hair dryer, hand dryer, warming appliance, electric ... warmer, etcIndustrial Series: can be used for water heater, industrial electric furance, far infrared ray ...