Trailer Truck Power Plant we produced follows the "Moves Power plant General Engineering factor" strictly according to GB/T2819-1995. The steel plate spring use the suspended type with electromechanical parking brake (hand brake) and tractive pneumatic brakes. We provide two-wheel and four-wheel trailer for consumers based on different engines' size and needs of consumers. We offer turning light and brake light and standardized plugs for tractors' connection. In addition, cable reel can be selected. The good quality of security and airproof can bear the needs of frequent change places. It is one kind of good emergency power supply.