Semi-trailers include the backbone of land freight transport—moving sets from food, machinery, and chemicals to construction materials and consumer goods. Semi-trailer manufacturers would be the companies designing, manufacturing, distributing, and supporting these vehicles, in addition to their performance has big effects on cost, reliability, safety, and sustainability for logistics... https://power-klavsen-3.technetbloggers.de/semi-trailer-suppliers-who-they-are-and-why-they-matter