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Why is the paint at the bottom of a sedan door rough?

1 Answers

LillianFitz

07/29/25 11:39pm

The paint at the bottom of a sedan door is actually a rubber asphalt coating. This is a normal phenomenon. The rubber asphalt coating serves as a protective layer against impacts, so upon close inspection, it may appear uneven. Below is relevant information about the car chassis: 1. Introduction: The car chassis consists of four main systems: the transmission system, running system, steering system, and braking system. The chassis functions to support and install the car engine and its various components and assemblies, forming the overall shape of the car. It also receives power from the engine to enable the car to move and ensure normal operation. 2. Maintenance Guidelines: To maintain the chassis during winter, it is essential to thoroughly clean the chassis and apply anti-rust treatment. First, the chassis must be completely cleaned. If there is excessive mud or dirt on the chassis, a degreasing cleaner should be used to wash it, revealing the original "true color" of the chassis. Only then can the anti-rust treatment begin.

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