Si-Fe anodes are widely used in impressed current cathodic peotection od offshore structures, underground pipelines, buried cable and so on. It is a kind of idea anode, as it has the character of low resistance, low consumption and low energy consumption. Our Si-Fe anodes are made according to ASTM A518-86 (grade 3) atandard, supplying in difference shapes:Rod Anode and Tube Anode.