... 3.ISO9001 UL CE RoH Ceramic heating element for electric instant hot water heater sampleSpecificationVoltageResistanceLength(mm)Width(mm)Height( ... to the human body and rather it radiates far-infrared rays beneficial to the human body by itself, so ... , hair curling iron), soldering iron, hot air blower, dryer, electric boiler, evaporator of petroleum stove, various metal mold thermostats, medical ...