The invention relates to ventilation grilles (22, 24), ventilation grille frames (10) and ventilation grille slats (12, 14), and to methods of producing ventilation grilles (22, 24). According to the invention, the ventilation grille frame (10) comprises horizontal slat holders (16) and vertical slat holders (18) which lie at least substantially in one plane. As a result, one and the same ventilation grille frame (10) can be selectively fitted with horizontal or vertical ventilation grille slats (12, 14), thus achieving a flexible configuration.
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