1. Complete packing: The checked baggage must be well packed, locked and securely tied, able to withstand certain pressure and be safely loaded, unloaded and transported under normal operating conditions.
2. Suitcases, travel bags and handbags must be locked.
3. Two or more packages cannot be bundled into one package.
4. No other items can be attached to the luggage.
5. Bamboo baskets, net bags, straw ropes, straw bags, etc. Can't be used as the outer packaging of luggage.