1.The dolly has bridge flat which satisfies the container move on a series of dollies. 2.The dolly surface can revolve 360°and 90°self-stop. 3.The towbar has multi-dolly connection and braking dual functions. 4.The dolly with special turnplate in forward shaft turns well in driving. 5.The tire uses the ultra wear-resisting solid core tire, the service life is long. 6.According to the container size, the dolly is loaded with active space-limiting device and the two sides are loaded with fixed space-limiting device to prevent the dolly from flopping. 7.It can load LD1, LD2, LD3 aviation container, three side loading