... ---drying---pre-curling and expanding---flanging---seaming bottom---beading and curling2.picture of production field ... curling and expanding (5) flanging (6) seaming bottom (7) beading and curling The production lines are ... machine, can body welding machine, can welder, can body welder, can body making machine, seam welding machine, seam welder, metal packaging machine, packaging machine, can machine ...