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Electrolytic polisher EPV1 helps in polishing & etching the specimens electrolytically. The Specimen is held in a clamp as anode & dipped in the solution of an electrolyte like KOH or NaOH or Oxalic acid. A fixed voltage at fixed current is passed for pre determined period of time. This polisher is recommended for etching specimens of stainless steels such as duplex .