... a whole by spreading the resistor slurry on the alumina ceramic substrate under 1600°C. Then it is through the ... treatment,environmental protection etc. Such as: mini-size fan heater, hair blower, drier, electronic heater, HVAC-Dehumidifier, hand drier, drying ovens, iron, ... , electronic thermal coincidence circuit, water & oil & acidic alkali liquid heater etc. MCH alumina ceramic plate heater