Mineral Fiber Ceiling Size 600 x 600, 600 x 1200 mm Thickness7~20mm Acoustics NRC 0.50 RH:95% Free Samples Mineral Fiber CeilingSize ... Thickness 7mm 8mm 10mm 12mm, 15mm, 18mm, 20mmMineral Fiber CeilingsColor White Material: Mineral Fiber, Wet-formed asbestos Free Surface Finished actory-applied ... watWeight 2.70 kg/m2 with 15mm Free Samples mineral fiber ceiling