Many cars need a process to be heated with hot water when they are being repaired. Only when the heat reaches a certain level can the material become soft. After about 5 minutes, the concave part of the bumper changed and the size of the concave gradually became smaller. The maintenance master struck the iron while it was hot and pushed it from the inside out until it fully recovered.
Extended data:
Most of the front and rear bumpers of family cars on the market are made of special plastic materials. Boiling water can restore the sunken car body, and the reason is simple. Plastic will soften when heated, and it can be sprayed out in the concave part as long as it is heated.
The dents repaired by technicians with poor repair skills can be seen from the front. It can be seen from the side that there are depressions or waterlines; The dents repaired by technicians with good repair skills can't be seen from the front, side and other angles.