... grinding ball, grinding medium, nozzles, ball valve and seat, zirconia moulds, fan axes, draw bench mould, incision tools, wearable ... knives and other wearable accessories.Zirconia material parameter: ItemTest ConditionUnit&SymbolZirconia CeramicThe main chemical ingredientZrO2: ... C9.5*10-6Thermal Shock ResistanceTc°C360Volume Resistivity20°CΩ.cm20°C> 1012 zirconia knife