A high-quality car external handle usually adopts the following materials:

1. Stainless steel: The stainless steel external handle has good corrosion resistance and wear resistance, can resist oxidation and corrosion, and keeps the appearance beautiful for a long time, which is suitable for vehicles used for a long time.

2. Aluminum alloy: the lightweight design of aluminum alloy external handle can reduce the overall weight, improve the fuel economy and handling of the vehicle, and has certain strength and durability.

3. Plastics: Some automobile external handles are made of high-strength engineering plastics, which have good wear resistance and impact resistance, and can reduce production costs and the overall weight of vehicles.

4. Cast iron: The cast iron external handle is usually used for economical models or commercial vehicles, with high strength and durability, and is suitable for situations where it bears large forces and is frequently used.

5. Titanium alloy: Titanium alloy external handle has excellent strength, corrosion resistance and light weight, which is suitable for high-end models or high-performance cars.

When selecting the material of automobile external handle, it is necessary to consider the factors such as beautiful appearance, durability, corrosion resistance, lightweight design, etc., and comprehensively consider the factors such as vehicle model, use environment and personal preference, and select the appropriate material to ensure the quality and reliability of external handle. Different materials have their own characteristics, advantages and disadvantages, and need to be selected according to the specific situation.