Introduction: Tractor semi trailers use three-6 axles dealing with 13-20 tons each, tough tires, and robust Q235 B metal chassis to ensure steady, safe transportation of major machinery as much as 40 tons. A montage https://saadmncl919351.blogocial.com/the-part-of-tractor-semi-trailer-styles-in-weighty-equipment-transport-74851765