The damaged bumper of the car can be repaired. The most vulnerable part of all automobile exterior parts is the front and rear bumpers. If the bumper is severely deformed or damaged, it can only be replaced. If the bumper is only slightly deformed or cracked, there is a way to repair it without replacing it. The maintenance cost of the front bumper is obviously higher than that of the rear bumper. First of all, the front bumper involves many automobile parts, while the rear bumper only involves taillights, exhaust pipes, trunk doors and other parts with relatively low value. The second rear bumper has certain advantages in height, because most models are designed with low front and high rear. Bumper is a complete bumper or safety system, which consists of bumper shell, inner anti-collision beam and left and right energy absorption boxes of anti-collision beam. The outermost shell mainly plays a buffering role in low-speed collision and scraping, but its impact resistance is not particularly strong.