1, auto assembling machine 2, import vibration bowl 3 increase your profit, 4 less cost on lab 5. good service ,longlife auto battery soldering ... honest and rich experience can take your better profit. This machine auto finished welding for top cap and steel can, 1 ... steel can 2. auto welding the top can and steel can to keep the battery seal well. This machine ER14250, ER17505, ER18505 ...