That depends on the degree of bending. If the bending is serious, it is recommended to replace the girder. The repaired girder will inevitably have errors. If it is not strictly maintained, it will be fine. Prices vary from place to place, ranging from 500 to 2000.

Under normal circumstances, the car girder will not be deformed, and usually only the car with an accident will cause the girder to be deformed. If it is slightly deformed, you can find a professional maintenance organization to correct it.

But if it is seriously deformed or wrinkled, it needs to be replaced with a new one. Because the longitudinal beam and cross beam of the frame are basically welded, if deformed, new parts can only be cut and welded on the deformed frame.

If the girder is replaced, it will not affect the annual inspection. As long as the girder is installed properly, there will be basically no problem without affecting the driving of the car. However, if the whole frame is replaced, you need to re-enter the frame number at the vehicle management office, otherwise you will not pass the annual inspection.