Which sentence correctly describes parties involved in air freight transportation? Nav Canada facilitates loading and offloading of the aircrafts by utilizing Heavy-duty scissor lifts. Combi aircrafts are often utilized when transporting passengers on main deck and cargo in lower deck. Uniform loading device (ULD) come with different sizes and shapes and allow freight forwarders to maximize the space of the aircraft Freight forwarders will make a booking and negotiate rates with airlines for their clients and pay air freight charges to the airline through CASS program