... has low heat expansion coefficient, large surface area, good heat stability Honeycomb ceramic heat media,as the media of heat storage and heat exchange,has ... ,electric power,boiler and so on,honeycomb ceramic heat media are made of corundum-mullite,cordierite-mullite,cordierite, ... -920Heat resisting assaultingk150350250300250The highest using temperature 14001600130012001100 heat exchange media