1.an efficiency of 95% in seawater. 2.D:35mm H:70mm Sacrificial Zinc Anode are used in applications for protecting the pipelines and marine structures from corrosion in seawater and saline mud.Zinc anode also suitable for the protection of storage tanks,fishing boat,submarine,stern drive and offshore platform,etc.Chemical composition Of Zinc anode, %Standard AL Cd Fe Pb Cu ZnASTM-B0418 TYPE IMIL- ...