| 摘要 |
The panel, which can be made in sizes of 60 x 60 up to 135 x 67.5 cm or more, is made from a thermo-setting resin foam sandwiches between a decorative micro-perforated laminate layer and a layer of plaster to provide acoustic insulation. The panel, which can be made in sizes of 60 x 60 up to 135 x 67.5 cm or more, is made from a thermo-setting resin foam sandwiches between a decorative micro-perforated laminate layer and a layer of plaster to provide acoustic insulation. The foam layer, which has a density of 11 kg/m<3>, is designed to absorb sounds that pass through the micro- perforations, and its periphery has a rim that can receive a false tongue or similar fastening for attaching the panel to a concealed or semi-concealed frame. The panel's components are assembled in the workshop with a sprayed adhesive and pressure.
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