Electrochemical anodizing is the process of covering the surface of the product with a transparent oxide layer with thickness of 0.010 – 0.025 mm. In ALCOMET this process is carried out on a computer-controlled automatic line in four distinctive stages: pre-treatment with satin finishing, anodizing, colouring and hot sealing. Key features of the anodized products are increased hardness, attractive appearance and corrosion resistance.