Low Density Mineral Wool Ceiling Board 1. Size:595*595mm,600 ... Edge:square,tegular edge Low Density Mineral Wool Ceiling Board Edge DetailMetric System(mm)British System( ... 15mm, 16mm,18mm, 20mm etc.Product FeatureSound absorbing,Resistance to fire, warm-keeping, energy-saving, heat- ... box,any designs customers demand;OtherMold resistance No AsbestosNo Formaldehyde Low Density Mineral Wool Ceiling Board