Automotive grille generally divided into 3 types:
1. Engine air intake grille;
2. Bumper decorative grille;
3. Buffer grille.
However, the exterior grille generally refers to the engine intake grille and the bumper grille, because these two kinds of grilles are exterior parts, they have relatively high requirements for surface quality, especially the grid-like structure, which leads to complex material flow, the key points is how to control the weld marks the location.