... , long service life.ApplicationThe various graphite ring is widely used in piping, valves, pumps, pressure vessels, heat exchangers, condensers, generators, air compressors, exhaust ... according to the customer requirement, e.g. Graphite Block, Graphite Rod, Graphite Crucible, Graphite Rotor, Graphite Plate, Self Lubrication Graphite bearing.Tennry has an excellent sales team ...