... PTC heater, ceramic plate, aluminum plate, coating ceramic paint, teflon, ion power,tourmaline. Classify by materials of the ... straightener plate.TypeSpecialtyExcellenceshortcomingOthersAluminum plate coated with Teflon coatingPaint a layer Teflon on the surface of aluminum plate ... ceramic plate sintered at very high temperature, and coat a glazing on surface Long life, bright, easy to ...