The SPMT trailer, also known as the self-propelled modular transporter, is primarily used for transporting heavy, large, high, and uniquely shaped structures. Its key advantages include flexible usage, convenient loading and unloading, and a load capacity exceeding 50,000 tons through multi-modular mechanical assembly or free combination. This type of trailer finds wide application in various industries such as equipment manufacturing, petroleum, chemical, offshore oil, and bridge construction.