... , 4. high intensity, 5. free from erosion. Product Name: ireproof Mgo Ceiling Board 1.Product Properties 1.raw materials: magnesium oxide, magnesium ... .6%;2.Product Uses 1.It is used for partition, ceiling, fence, wall decoration and bar surface decoration; 2.It is ... filling putty; 2.can be planed,sawed,nailed easily. Fireproof Mgo Ceiling Board