9mm pet felt acoustic panel

Fiberglass Suspended Ceiling Baffle Acoustic Ceiling Baffles Durable Felt Ceiling Baffles Sound Absorption , Multi Colored Hanging Sound Baffles Product Description: Technic Data: Product Description PET PANEL Raw Material 100% Polyester fiber Size Stocked Size: 1220 * 2440 * 12mm, Other size: Can be customized Sound Absorption GB/T20247-2006/ISO354:2003 Audio frequency bandwidth, NRC reaches more than 0.8 Environment Friendly OEKO-TEX Standard 100 GB/T24001-2004/ISO14001