Acoustic Louver, Acoustic Door, Acoustic Enclosure manufacturer / supplier in China, offering Prep for Storm Season with Aluminum Sand Trap Louvers: The Ideal Solution for Exterior Wall Sand Protection and Ventilation, as Certified Metal Louver Doors: Engineered for Optimal Noise Control in Mechanical & Electrical Environments, Metal Acoustic Louvered Doors: Achieving Australian Standard Noise Reduction for Mechanical & Electrical Zones and so on.