... , MCH ceramic heater rods, MCH ceramic heating pipe,Ceramic slice,Ceramic disc,Ceramic Heating Plate MCH ceramic heating element, MCH ceramic heater rods, MCH ceramic heating pipe,Ceramic slice,Ceramic disc,Ceramic Heating ... Metal Ceramics Heater.PTC is the abbreviations of Positive Temperature Coefficient .MCH refers to print circuit on the surface of ceramic heater which consist ...