... specialized in different kinds of ventilation series products, such as:aluminium grille, stainless steel grille etc SQUARE GRILLEMaterial: stainless steel 304, aluminium ... , stainless steel round grille, stainless steel clap grille, aluminium grille, square grille etc. We are also in a position to develop ... new products while receiving your samples as well as drawings. SQUARE GRILLE