Top engineer provides leadership. Engineers have a lot of training through Pure-Pak school in Detroit. Men learn fine points of their craft here. Learn about machines, maintenance, etc. Footage of workers attending class, graduating from maintenance school. Close-up of machines holding milk cartons in action. Wide shot to close up of worker. Shot of workers in school in Detroit learning about maintenance. Close up of milk cartons in machines, on production line. Men shaking hands after graduation, men at dinner celebrating their graduation from maintenance school. Close up of man’s uniform badge that says “Factory Trained.”