Process Surface coating process where the workpiece through an anode-cathode reaction is coated with a thin decorative layer of hexavalent chrome with a black tone.
Process Surface coating processing the workpiece through an anode-cathode reaction in a salty solution is coated with a thin and ductile layers of zinc.
Process Surface coating process where an aluminum workpiece that acts as the anode is subjected to high voltage and is oxidized in a cooled acidic solution which creates a corrosion-resistant and durable surface.
Process Surface coating process where the workpiece through an anode-cathode reaction in an organic or inorganic solution is coated with a layer which is semi-glossy and resembles satin.