Decoiling and flattening, curling, seam welding, punching, pre-curling and glue spraying, sealing

1. First-stage production line

1.1 Decoiling and flattening of the barrel body---curling ---seam welding

1.2 Decoiling and flattening of the barrel cover and bottom---punching of the barrel cover and bottom---pre-curling and glue spraying---sealing

2. Middle-stage production line

Flanging machine---corrugation machine---sealing machine---leakage checking machine

3. Posterior-stage production line

Painting---drying---finished product

steel barrel production line