99.5% alumina ceramic piston pump Fine ceramic piston Alumina ceramic shaft pump High purity alumina 99.5% al203 ... Satisfy various technical request3) Lower medium spoilage4) Good insulation performance and high temperature resistance5) Stiffness texture6) Used in all ... tube, rod, plate, disc, wafer, ring, seal, bearing, valves, pump plunger, beam, roller, shaft, screw, washer, sleeve, hunger, spacer ...