hair straightener: The ceramic heater is mainly made of Alumina,which is manufactured by sintering in high temperature above 1600 degC with heating layer printed in the ceramic sheet.The ceramic heater generates heat when an electric current is applied thereto, is capable of raising its temperature to 800 degC within 20 seconds.The metal ceramic heater has such merit as excellent resistance, noiselessness, usefulness for every requied heat setting.Meanwhile MCH contains no harmful material, complys with environment protection. Alumina heaters are used for hair irons , hair straighteners.It can be applicable to a variety of hair quality products because moderate temperature distribution can be obtained by the heater design and quick temperature rise and stable temperatures can be achieved