Why is aluminum alloy processing so widely used! Where are they used?

Why is aluminum alloy processing so widely used:

Some aluminum alloy materials have good low temperature resistance, are not cold and brittle under -183～-253[2oc], have excellent welding performance and good corrosion resistance, so they can work in liquid hydrogen and liquid oxygen environments. Store special liquids.

From the common hardware processing in life to the CNC precision parts processing in high-end industries, there are shadows of aluminum alloy processing such as: common metal bottle caps, cans, doors and windows, shelves to high-end industry ship propellers, aircraft skins, frames, Girder etc. Even the fuel tank, oxidant tank, inter-tank section, inter-stage section, tail section and instrument compartment of all levels of the launch vehicle are made of aluminum alloy.