. "Of course, the main component of the constituent material of the honeycomb structured body is not limited to silicon carbide, and examples of the ceramic material include nitride ceramics such as aluminum nitride, silicon nitride, boron nitride and titanium nitride; carbide ceramics such as zirconium carbide, titanium carbide, tantalum carbide and tungsten carbide; and oxide ceramics such as alumi" . . .