mineral wool board

mineral wool board feature: 1) Fire Performance: Meets GB8624-1997B1 Standards 2) Asbestos Free 3) Formaldehyde Free 4) Product Content: Mineral Fiber 5) Color of Surface: White 6) Noise Reduction Coefficient: Nrc 0.45 - 0.6 Depending On The Pattern And The Thickness 7) Light Reflectivity: More Than 85% 8) RH: >= 80% 9) sound absorption: EN20140-1994 10) Standard Thickness: 8-20mm 11) Standard Dimensions: 300x600, 600x600, 300x1200, 600x1200, 600x1800mm, 400*1200m400*600, 300*2400mm and some other special sizes 12) edge details: flat,tregular, concealed and shiplap 13) the density is about 290-320kgs/m3 Quality Certificate: ISO9001:2000, ISO14001, CE Certificate