... 300,400,600cells Round,Racetrack,ellipse,abnormity Honeycomb ceramic substrate (Used In Vehicle)Honeycomb ceramic substrate is made of cordierite, and it ... is used for car catalytic converter. We can supply both ceramic element coated with noble metals of Pt, Pd, Rh and ... φ93*152.41.035 φ83*152.40.825 φ80*1000.503 φ76*500.227 φ41*250.033 Racetrack ellipseP169*80.8 ...