99.5% alumina ceramic piston pump Fine ceramic piston Alumina ceramic shaft pump High purity alumina 99.5% al203 Features:1) ... resistance5) Stiffness texture6) Used in all electric products, electric heating products and wear resistant machinery parts.7) OEM, ODM and ... tube, rod, plate, disc, wafer, ring, seal, bearing, valves, pump plunger, beam, roller, shaft, screw, washer, sleeve, hunger, spacer, ...