... nozzle with high purity, high abrasive resistance with good precision of the dimention. Our company, Foshan Ceramic Research Institute(FCRI), with ... , ceramic plunger, ceramic ring, ceramic insulated gasket, ceramic nozzle, ceramic pole, etc.Advantage:1. wear-resistanting,2. ... as shaft bearing ,plunger,sealing matetial and knife, with high density, hardess ,bending strength and breaking tenacity. ...