These hand trucks have aluminum frames and magnesium nose plates, which are lighter and more flexible than aluminum nose plates and are suitable for use in cold environments such as freezers. The hand trucks weigh less than steel and stainless steel hand trucks and resist rusting when used in damp or wet environments. Modular hand trucks allow users to replace parts of the hand trucks as they become worn or damaged, making them easier to maintain than non-modular hand trucks with welded frames and nose plates. They are used in delivery services and other commercial and industrial settings where the trucks will be used often and their parts may need frequent maintenance.