... ect..Main Feature:New Eco-friendly Construction Material Glass Magnesium Fireproof Board Yide board is a kind of Eco-friendly fireproof ... Fire door core and duct/ pipe substrates. 11. Especially suitable for Office Building, Home, Apartment, Library, Museum,Theaters, Restaurant, ... , Library, Hall, Factory etc. 12. Further processing:Normal mgo board is with one smooth surface and one rough surface. But ...