The main structure of the low flatbed semi-trailer

Low flatbed semi-trailers usually use a concave beam (or well-type) frame, that is, the front section of the frame is a gooseneck (the traction pin of the front section of the gooseneck is connected to the traction saddle on the tractor, and the rear end of the gooseneck is connected to the semitrailer frame. connected), the middle section is the cargo platform (the lowest part of the frame), and the rear end is the wheel frame (including wheels).