1. 1. Make sure that the trolley is fixed: before transportation, it needs to be fixed on the truck to ensure that it will not slide or move during driving. You can use special materials such as straps, mats and boards to protect the car and fix it on the truck.

2. Secondly, choose the right freight car: different types of train cars may have different loads and fixtures, so you need to choose cars that are suitable for the size and weight of the cars and ensure that they have enough fixtures to protect the cars.

3. Finally, comply with the regulations of the railway department: when transporting the trolley, please comply with the regulations and instructions of the railway department, including speed limit and requiring the use of specific fixed equipment.