1.After the Punching process 2.2pcs transport device, 3.after welding bottom rotation 180degree , 4.base plate auto loading ,punching hole cage put on base plate 5.2pcs worker or 4pcs worker fasten the screw and nameplate with corner protector . 6.then container auto loading into cage 7.2pcs worker will assembly the top pipe . 8. then stacking up 3 -4pcs tanks .