Talk about the materials and processes of different wheels.

Let's talk about the material, low-end cars use steel wheels, which is often said to be iron wheels. The advantages of steel wheels are cost-effective, not only the manufacturing process is simple, the production cost is low, and the strength is high, the metal fatigue resistance is strong, and it is not easy to deformation. However, there are also disadvantages of heavy weight, large inertial resistance, and poor thermal conductivity of steel, and because of the requirements for strength, the hollowing area of steel wheels can not be too large, which will have a greater impact on the performance and heat dissipation of the brake. In addition, the steel wheel has a fatal defect, that is, due to the use of the environment and wear and other factors, there may be rust, resulting in serious driving safety hazards. In addition, the appearance of steel wheels looks rough, which will destroy the overall beauty of the vehicle, so many owners will replace steel wheels with aluminum alloy wheels if the budget allows.