Barrel plating process of battery steel shell 1, plating bath and method of rapid barrel nickel-iron alloy 2, method of non-metal surface barrel plating 3, barrel plating by electroplating 4, modified barrel plating drum 5, jet flow The barrel plating apparatus 6 can pass the automatic barrel plating machine power saving device 7, the liquid permeable plug 8 of the plating drum for barrel plating, the barrel plating device 9, the plating drum, the barrel plating equipment and the discharge device 10, and a battery copper needle Rolling indium plating method 11, an alkaline manganese battery copper needle rolling tin plating method 12, steel core barrel nickel plating insoluble anode and its preparation process 13, automatic barrel plating machine 14, flip type single barrel barrel plating machine