... and performance requirement.Our industrial ceramic parts include, tube, rod, plate, disc, wafer, ring, seal, bearing, valves, pump plunger, beam, roller, shaft, ... nozzle, guide, frame, lining, and grinding media, milling ball or beads.These precision toleranced ceramic components or assemblies are used ... .01Planeness0.005Roughness 0.05Fit clearance0.005 alumina ceramic part& ceramic shaft