ceiling board----mineral fiber board 595*595 15mm jinzhou packing:shrinkwrap with pieces of ... cartons pattern:3510,711,hole,.etc ceiling board------mineral fiber board 595*595 15mm jinzhouSpecification:1.Low density and guarantee ... *595mm,600*600mm,603*603mmThickness:12mm,14mm,15mm,16mm,18mmMineral Fiber concentration:85%Density:280-320kg/m3 or 380-400kg/m3NRC ...