To give a gorgeous impression to lookers on a radiator grille as radiated light becomes linear and reflects at high reflectance.

A frame body 13 is provided on a car body opening part in front of a radiator, and a plural number of plate type or bar type grille bodies 14 are built in grating or furring in the inside of the frame body 13. Additionally, a galvanized layer is formed on each of surfaces of the frame body 13 and the grille body 14, and a top part of the grill body 14 is formed irregular in the longitudinal direction. Furthermore, a cross-section shape of the top part of the grille body 14 in the longitudinal direction is formed in a rack cutting shape connecting a plural number of straight lines of specified length to each other, and a cross-section shape of the top part in a direction orthogonal with the longitudinal direction of the grille body 14 is formed in a protruded surface.