What is the black thing on the front undercarriage of the car?

[DeElliot]

It is the lifting hole used in the welding production line during manufacturing. Below are the functions of undercarriage armor: 1. Anti-corrosion: Rust on cars usually starts from the bottom plate. Even cars that have only been driven for three to five years may show rust spots on the side beams. Southern regions have inherently humid weather, and the residual wastewater from each car wash accumulates at the bottom, potentially forming corrosive factors over time, causing damage to your beloved car. 2. Stone impact protection: While driving, small stones can be kicked up, and the force of these stones hitting the bottom plate is directly proportional to your speed. For example, a 10-gram stone at a speed of 80 km/h can have an impact force 30,000 times its own weight. 3. Vibration damping: The engine and wheels are fixed to the car's floor. Vibrations at certain frequencies can resonate with the bottom plate, causing discomfort. Bottom protection can eliminate this resonance, providing you with peace of mind.