Sunstone supply most of the equipments used in potroom of the aluminium smelters, including pot sh Sunstone supply most of the equipments used in potroom of the aluminium smelters,including pot shell, anode yokes, superstructure, busbar, Constant-volume Feeder,Lifting Frame for BusBars, and so on. All these products has been proven tobe qualified and efficient by domestic and overseas customers.