... , firing equipment and refreactory.We can machinging ceramic rods, ceramic plunger, ceramic ring, ceramic insulated gasket, ceramic nozzle, ceramic pole, ... resistance4. oxidation resistanceSpecification Zirconia ceramic are applicated as shaft bearing ,plunger,sealing matetial and knife, with high density, hardess ,bending ... ·m1/26-8Thermal expansion coefficient/°C9.5x10-6 ceramic metering pump