1.do not wear easily,low friction 2.Desirable surface fineness 3.High quality and high wear resistance 4.Long service life Our general ceramic parts include, 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 ...