1.Mineral Wool Ceiling Board 2.sound absorption 3.size:(300~600)x(600~2400mm)x(12~20mm) 4.low density 5.CE/ ... typeAdhesive and Nails, Square, Tegular, Concealed, Shiplap, Linear ShiplapFunctionFireproof, Sound-absorbing, Sound-absorbing, Damp-proofStandardsGT8-624-1997, EN20-140-19942. Raw materials ... backing-plate horizontally, about one meter away from the wall. Sound Insulation Mineral Fiber Board