We can supply various perforated louvers in either mild steel, stainless and aluminium with various dimensions depending on both the application and architectural needs. Perforated louvers are generally used in doors to permit the movement of air from one area to another. Louvers offered by Dezhou Perforated Metal Factory has an average twenty percent open area. Perforated louvers sheets are used in many applications ranging from locker doors to air ventilation grilles.