Ceramic seals Hight property of the resistant-high-temperature,resistant-corrosion,resistant-wearing Ceramic seals Specification: 95%, 96%, 99%, 99.5% alumina optionalSize: Outer diameter largest up to 300mmFeaturesAlumina ceramic seal faces have the property of the resistant-high-temperature,resistant-corrosion,resistant-wearing and good sealing.Application: It widely used in spacecraft, ...