Trailer, Trailer Axle, Dumptruck manufacturer / supplier in China, offering Customizable Extendable Triaxles 60t Side Wall Transport Semi Trailer Drop Side Cargo Semi Truck Trailer with Adjustable Length Hydraulic Stretchable Beam, Extendable 2 Axle 3 Axles 4 Axles Side Wall Enclosure Cargo Semi Trailer, Extendable Utility 2 Axle 3 Axles 4 Axles Side Wall Cargo Semi Trailer and so on.