Car body welding assembly consists of car body frame, hood, trunk lid, left and right door outer plate welding assemblies. Car body structure consists of floor welding assembly, left and right front longitudinal beam and wheel cover welding assembly, left and right side wall welding assembly, front wall welding assembly, top cover and front and rear beams, tailgate, left and right rear longitudinal beam and rear wheel cover welding assembly, and rear wall welding assembly.

The parts of the car body that need to be assembled and welded are mainly divided into four parts: four doors and two covers assembly welding, left and right side wall assembly welding, car body floor engine compartment assembly welding and car body assembly welding.