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Hard chrome plating is a technique of electroplating a layer of chromium onto a metal object; it can increase the durability, hardness, wear resistance and corrosion resistance of metal components for more effective use in machinery and equipment. Hydrochloric, hydrofluoric, and sulfuric acids are mainly used as etching solutions. In such working environment, attack the metal of the anode is often occurs. Lead alloy anodes are not as prone to corrosion from the fluoride electrolyte solution or acids as some other an