... to:Exhaust system assembly series: can be used for automobile electronic igniter, exhaust gas/purifier/heater/muffler/aire ... 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 device, boiler, heating element, industrial oven, ...