1 fire performance:meets gb8624-1997b1 standards 2 asbestos free 3 formaldehyde free 4 fiber content:>=90% 5 color of surface:white 6 noise reduction coefficient:nrc0.4-0.6 depending on the pattern and thickness 7 light refletivity:more than 85% 8 rh:>=80% 9 sound absorption:en20140-1994 10 standard thickness:6-20mm 11 standard dimensions:(300)600*600(1200/1800), 595*595, 595*1195, 603*603. 12 edge details:flat, tegular, concealed and shiplap 13 water content:=80% 9 sound absorption:en20140-1994 10 standard thickness:6-20mm 11 standard dimensions:(300)600*600(1200/1800), 595*595, 595*1195, 603*603. 12 edge details:flat, tegular, concealed and shiplap 13 water content:
