The National Association of Manufacturers has a pretty nifty series of blog posts and accompanying videos of "stuff being made". This week, they focus on Excel Modular Homes of Liverpool Pennsylvania:
Ed Langley, the company's president and CEO, gives us a tour of the operations starting with sales and moving through design and construction....
Visit the original post for the link to the video. It's long, but shows many details of the modular home manufacturing process.
length: >15 mins
publication: Pennsylvania Cable Network via National Association of Manufacturers