Ultimate Factories

Ultimate Factories is an American documentary television series that premiered in 2007 on the National Geographic Channel. Produced by Michael Hoff Productions and National Geographic Film & Television, the program explores the inside workings of various factories worldwide. Each episode profiles the machinery and manpower behind each factory's main product, featuring close-ups, breakdowns, interviews, and side stories to show the sequence of events in order to show the process in the factory. Three episodes started the series, with additional episodes following later in the schedule

Source: Wikipedia.org