Mass production
Mass production is the kind of production where you are making a large quantity of product with the same specification and looks. The most labor work force that specializes in mass production is the Chicago Printing companies. In fact, they would even encourage customers to order in huge quantities and have it mass produced. Most of their printing machine operates cheaper when mass producing. Sometimes they have the same workforce and same equipment and the only thing that needs to be added are the materials. This could be the reason why mass production is cheaper than custom made products that is costly on the labor.