mineral fiber ceiling sag resistance high & low density environmental friendly ISO9001:2000 ISO14001:2004 CE Mineral Fiber Ceiling:Detailed Specification:TypeFine fissured, pin hole, sandy and different shape boardsStandard Size600*600mm,300*600mm,600*1200mm,300*1200mm,300*300mmThickness12mm,13mm,14mm,15mm,16mm,18mm,20mm,22mmEdgeSquare edge, tegular edge, concealed edge, shiplap edge, liner ...