Dear Sir Madam, Acoustic Panel Type:Acoustic perforated gypsum board Name:soundproofing materials Material:Gypsum board Size:1200*2400mm Thickness:9.5 12mm NRC:0.75 Certification:ISO9001, ISO14000 Application:Office, Building hall, Meeting room, etc Function:Sound Absorpting, Decoration, Entertainment MOQ:100sqm Payment:T T, Trade assurance, Paypal, L C