Alumina Oxide (Al2O3): from 90% to 99.8%

Glazed or unglazed, Moly-Mag metallized and Nickel plating ceramics (non-magnetic)

Zirconia Oxide (ZrO2)

Steatite: L-3, L-5

Silicon Carbide (SiC)

Silicon Nitride (Si3N4)

Boron Nitride (BN)

Titanium Dioxide (TiO2)

AlSiC (Aluminum Matrix SiC Particle Reinforced Material)

Tungsten Carbide (WC)

Sapphire

Ruby

Others