Specifications:1) Sizes: 1,220 x 2,440mm; 2) Thickness: 3 - 20mm3) Other sizes available Accept OEM size4) Edge finished: square5) With recessed edges for easy finishingFeatures: 1) Fireproof and waterproof2) Incombustible: A grade, GB8624 3) Density: 850 - 1,200kg/cbm 4) without fly ash in our boards5) Without non-alkaline fiberglass6) Applications: partition wall of office room, shopping mall, theater, ceiling, etc.