... of ceramic fiber and binders. And the surface is polished. We mainly export to USA, ITALY, UK, GERMANY etc.Characteristiclow thermal conductivity , low thermal ... capacityHigh thermal stability ,resistance to thermal shock,flame and airflow ... 3-3(1000oC) (1100oC) (1200oC) (1350oC) Thermal conductivity(w/m.k) density285kg/m3) 0.085(400oC ...