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Tractor unit (prime mover or tractor truck ) is known as truck head or trailer head, a characteristically heavy-duty towing engine that provides motive power for hauling a towed or trailered load. The tractor-trailer combination distributes a load across multiple axles while being more maneuverable than an equivalently sized rigid truck. The most common trailer attachment system is a fifth wheel coupling, allowing rapid shift between trailers performing different functions, such as a bulk tipper and box trailer. Trailers containing differing cargoes can be rapidly swapped between tractors, eliminating downtime while a trailer is unloaded or loaded.
Chengchuan Heavy Truck Co., Ltd. is located in Liangshan, Shandong , China, the world's largest used truck trading base. The company was established in August, 2010 and currently has nearly 300 employees, including more than 200 professional and technical personnel.
We have built a long business relationship with SINOTRUK \ SHACMAN \ FOTON \ Dongfeng truck brand. Besides mature after-sale systems, we can meet different needs of customers. We provide various trailers and truck, such as dump truck, tractor truck, low bed trailer, flatbed semi trailers, fuel tanker semi trailer, skeleton trailer, side wall semi trailer, cargo box semi trailer, dump trailers, bulk cement trailer, car transport trailer.



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