Lowboy semi-trailers are commonly used for transportingHeavy-duty vehicles(like tow trucks, large coaches, special-purpose vehicles, etc.), rail vehicles, mining machinery,Forest Machinery、Construction and engineering machinery(like excavators, bulldozers, loaders, pavers, cranes, etc.) and other heavy-duty cargo; the lower the center of gravity, the better the stability and safety, and the stronger the ability to transport oversized cargo and navigate overhead obstructions.