Tough Friends is a 1930s promotional film that answers the question, "how is steel made from iron ore?" with many good shots of steel mills of the era. Jam Handy Productions made this film for the Chevrolet Motor Company in 1938 in order to explain how Chevyâs were safer and more durable because of the new, stronger steel materials from which they were constructed. Shot like a stirring documentary, the film illuminates the history of the steel industry in America, as well as the history of steel. Steel mill workers are seen mixing alloys to create better hard steel. Tough Friends is a vintage Chevy ad that's also a wonderful historical document.