Apple’s iPad and the conditions under which it is built are topics that surface regularly on technology blogs and in the mainstream media. While the company did recently initiate a review by the Fair Labor Association, human rights organizations regularly take Apple to task for not doing more to ensure factory workers employed by its China-based manufacturing partner Foxconn are treated well. Foxconn and parent company Hon Hai employs hundreds of thousands of workers, however, and hundreds more travel from around the country each day to line up and apply for jobs at Foxconn’s various plants. Marketplace Shanghai bureau chief Rob Schmitz was recently given a rare opportunity at operations within Foxconn’s Shenzhen iPad factory, and his crew was permitted to film a number of active stations on the iPad assembly line that have never been seen before. The result is an inside look at some of the fascinating technology that goes into building the world’s most popular tablet. Marketplace’s video follows below.