Code 3220 applies to employers engaged in manufacturing various types of metal cans made from aluminum sheet metal and tin plate.  Manufacturing cans is ordinarily an automated process.

The cans are manufactured using the following steps:  Large coils of metal are received from others.  The metal coils are cut into sheets based on the anticipated size of the cans to be manufactured.  The sheets are sprayed with a coating to protect what is to become the can’s interior. The sheets are printed with information as required.  The sheets are then slit and placed into a body former which forms the metal into a cylinder (can).  The cylinder is then sealed at the side by cement, solder or a welding process.  The cans are washed and inspected for any leaks or imperfections.  The appropriate size lids and bottoms are packaged along with the cans for shipment to the employer’s customers.