... specialize in studying and producing advanced ceramic, such as Zirconia Ceramic, Silicon nitride Ceramic, Alumina Ceramic, etc.The quality system has ... firing equipment and refreactory.We can machinging ceramic rods, ceramic plunger, ceramic ring, ceramic insulated gasket, ceramic nozzle, ceramic pole, etc.Advantage:1. wear-resistanting ... will try our best to meet you requirements. ceramic seal ring