No other industrial metal process takes you in one step directly from the raw ingot to the completely finished precision part like die casting. The dimensional accuracy achieved directly from the die obviates the need for further machining. The smooth finish is usable as is for the most decorative products for the consumer market to the complex interlocking assemblies in defense and avionics systems.
The aluminum and zinc used, being non-ferrous metals, are already quite resistant to corrosion as is. But with a whole array of finishes possible for them, their durability is outstanding.
Click here to find a comparison between die casting and most other industrial metal processes.