... ceramic part -A variety of specifications available -Good insulation performance -High wear resistant Features:1) A variety of specifications ... ceramic parts include, tube, rod, plate, disc, wafer, ring, seal, bearing, valves, pump plunger, beam, roller, ... Diameter1---300Inside Diameter0.5---300Length0.5---1200Accuracy of working (mm)Perpendicularity0.01Concentricity0.01Roundness0.005Straightness 0 ...