Semi-trailers would be the backbone of land freight transport—moving everything from food, machinery, and chemicals to construction materials and consumer goods. Semi-trailer manufacturers are the companies designing, manufacturing, distributing, and supporting these vehicles, and their performance has big effects on cost, reliability, safety, and sustainability for logistics and tran... https://graph.org/Semi-Trailer-Suppliers-Who-They-Are--Why-They-Matter-09-21-2