Are there any other modes of air cargo besides container transportation?

Domestic air cargo is generally transported by civil aviation passenger aircraft, and bulk cargo is generally assembled, that is, cargo is packed in bulk in the cargo hold at the bottom of the passenger flight.
There are two other methods for international air cargo, one is palletizing and the other is packing. Both methods are to preload the goods onto airborne pallets or airborne containers, and then load the entire pallet or container onto the aircraft.
Domestic postal aviation all-cargo aircraft use plate-making.