Zn electroplating  is an electrolytic process when, on the electrically conductive materials (in most cases steel parts - cathodes) a layer of zinc is deposited while the zinc anode simultaneously dissolves. This creates not only an anticorrosion layer but also architectural coating. Suitable materials for galvanizing are steel parts or casting or forgings. Quality of surface treatment is directly dependent on the quality of the input material. It is necessary that the parts are handed over to the galvanizing without coarse scales, excessive grease, paint or deep corrosion.