Customs inspection can ensure that the goods do not contain prohibited or restricted items. These items may cause harm to the safety, health or environment of the destination country and therefore need to be intercepted and processed.

The disadvantages of air transport are mainly: high cost, flight delays or cancellations, need to pay taxes and surcharges, need to pay fuel and currency surcharges, and last mile problems.

Express services usually provide the fastest delivery and may take 1-3 days. Air freight is a fast method of international freight, usually taking 5-10 days. Ocean shipping usually takes longer and may take 20-45 days or even longer.

Cargo usually refers to items transported by various means in commercial trade, including sea transportation, air transportation, land transportation, etc. Freight mainly focuses on the transportation method and process of cargo, including the loading, transportation and unloading of cargo. Freight also involves cargo logistics planning, route selection and cargo tracking. In addition, Freight also has direct contact with the financial aspects of cargo transportation, such as freight calculation and insurance.

The three main types of freight are air freight, ocean freight, and trucking. Air freight is the fastest way to ship, sea freight takes longer, and trucking offers flexibility. Each method has its own characteristics and advantages, and plays different roles in different scenarios.

When it comes to freight costs, road and rail transport are often considered the cheapest options, while air transport is the most expensive. Choosing the cheapest freight method usually depends on the destination of the shipment, the distance traveled, and the weight and volume of the shipment.