... magnesium chloride, sawdust, perlite, high alkali glass fiber mesh2ProcessChoice of materials, ingredients, foam, molding, mold release (24 hours), trimming, ... no record13Chemical analysisComplete chemical analysis room, all the raw materials for each testComplete chemical analysis room, the main raw ... and powder17Useful life 50 years10 years1 year1 month mgo board,fireproof board,waterproof board