I work at a manufacturing company. The carts are like little flat bed trucks, and they do one thing: move empty and full bins from station to station, and the

I work at a manufacturing company. The carts are like little flat bed trucks, and they do one thing: move empty and full bins from station to station, and the warehouse. They have rollers on the flatbed part, that push bins over to the hole in the wall at a station. The hole in the wall has similar rollers. They follow a set route along the wall of a hallway that's used by people and the carts.