What are the categories of semi trailers?
Van semi-trailer, warehouse gate, Gaolan car, warehouse bar trailer, bulk cement truck, lightweight semi-trailer, concrete mixer, harbor wharf low flat special vehicles, special vehicles, coal tanker
Semi trailers: low flat, semi trailers, special vehicles, semi trailer transport dump trucks, warehouse cars, tank cars, dump trucks, vehicles, trucks, powder transport vehicles
Asphalt special vehicle, bulk cement truck, cement mixer, container semi-trailer truck, truck, container, low flat plate height, lengthened and widened the car, tractor brand: Dongfeng Steyr Auman Benz Hongyan liberation brand tractor
