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Graphite Cathode Protection With Low PorosityProduct descriptionGraphite rod is impregnated,Website:http://www.tennrycarbon.com, reduce the surface porosity, separate the metal basal body from outside surrounding, avoid metal to act on surrounding, thus get the anti-corrosion effect.Anode protection is the anti-corrosion technology that exert the positive polarity current to metal, produce a protective membrane on the metal surface, get the effect of protecting metal.  The reason for electrochemical corrosion: because of the difference of physical and chemistry property in ground, any part of