99.5% alumina ceramic piston pump Fine ceramic piston Alumina ceramic shaft pump High purity alumina 99.5% al203 ... tube, rod, plate, disc, wafer, ring, seal, bearing, valves, pump plunger, beam, roller, shaft, screw, washer, sleeve, hunger, spacer ... , holder, carrier, insulator, scissors, knife, slitter, tweezers, tools, fixture, clamp, chuck, nozzle, guide, frame, lining, and grinding ...