Acoustic insulation panel, for false ceilings, has a melamine foam slab within a metal trough and closed by a cover, with or without perforations

摘要

The acoustic insulation panel is composed of a slab of foam (3), in a variable thickness and density, within a metal trough (1,2) with or without perforations. The trough is covered by a metal lid (4), with or without perforations.