Introducing Brotex Acoustic's 16/16/6mm Customized Diffuser Perforated Acoustic Panel Wooden Wall Soundproof Board, featuring FSC certified, CE, ISO, SGS, and Intertek certifications, with a high NRC of 0.8, real veneer, laminate, or melamine finish, and charcoal board or MDF core, perfect for auditoriums, conference halls, schools, and offices, Welcome to visit our website!