... coating ceramic paint, teflon, ion power,tourmaline. Classify by materials of the straightener plate.TypeSpecialtyExcellenceshortcomingOthersAluminum plate coated with ... at high temperatureEasy to clear, no viscidity on hair, fast temperature risingOnly black color, not very handsome ... additive powder, is sintered and processedLong life, ion can be generated itselfLower temperature rising, very high ...