... is a light board. Its density is less than 0.96g/cm3(GB/T7019---1997). At the same ... feature of heat prevention. Thermal conductivity is less than 0.5w/mK. Our magnesium fireproof board is proved ... 1) Sizes (width): 2,440 x 1,220mm2) Thickness: 3-18mm3mm, 5mm, 6mm, 8mm, 9mm, 10mm, 12mm, 15mm, 18mm Packaging & Delivery ... before shipment. (negotiable) Yi De MgO Decoration Board for Ceiling,Partition,etc