... a whole by spreading the resistor slurry on the alumina ceramic substrate under 1600°C. Then it is through the process ... , drier, electronic heater, HVAC-Dehumidifier, hand drier, drying ovens, iron, curling iron, electronic thermos, vacuum flask, heat-preservation cabinet, heat-preservation ... circuit, water & oil & acidic alkali liquid heater etc. MCH alumina ceramic plate heater