Best Job To Learn About the Industrials

I'm from a decent semi-target university and I'm currently looking for summer internship. So I'm majored in mechanical engineering and I know I would love to start a firm that produces gadgets one day. However, I wouldn't want to start off with being an engineer. I would love to get to get the wide exposure to the industrials sector first, before I move to an industrials job or working for a industrials start-up. My questions is what job will offer me the best exposure to the industrials sector?