Mass production is the production of large amounts of standardized products, including and especially on assembly line

Assembly line

An assembly line is a manufacturing process in which parts are added to a product in a sequential manner using optimally planned logistics to create a finished product much faster than with handcrafting-type methods...

s. The concepts of mass production are applied to various kinds of products, from fluids and particulates handled in bulk (such as food, fuel, chemicals, and mined minerals) to discrete solid parts (such as fasteners) to assemblies of such parts (such as household appliances and automobiles).

The term mass production was defined in a 1926 article in the Encyclopedia Britannica supplement that was written based on correspondence with Ford Motor Co.