... used as outer wall and ventilation duct. Filling the heat-insulation material between two pieces of mgo board, it's ... duct. It's facade could coated with latex paint.Features: Heat-insulation; Fireproof; light-weight; Environmental-friendly. Mgo board is ... wall system. Especially suitable for office building, home, hotel, super market, shopping center, hospital, library, hall, factory and so ...