North Macedonia Sound Insulation Material Import / Construction And Building

We need aluminum absorbing sound panels, single-sided perforated, filled with mineral wool ρ=100kg/m3, sheet thickness 1.2mm, electrostatic painted with color according to the choice of the Investor. Panels should have sound insulating powerDLr ≥ 25 dB class B3 and absorption coeficient DLa ≥ 13 dB class A4. Dimensions of the panels are 2960x500mm, with appropriate profiles and EPDM rubber seals for sealing. They are installed in steel HEA 160 pillars. Quantity 2585 pcs. Also we need reflective transparent sound panels, performed with policarbonate with thickness 15mm, thermoformed in Z shape. Panels should have sound insulating powerDLr ≥ 29 dB class B3. Dimensions of the panels are 2960x500mm, with appropriate profiles and EPDM rubber seals for sealing. They are installed in steel HEA 160 pillars. Quntity 1900 pcs Both position must be made according to the standards EN-1793-2, EN 1794-1.