mgo fireproof board nvironmentalism, do not contain any material that can pollute the air in your house. And rainproof, fireproo 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 ...