... endured epoxy cloth, perlite (Without : asbestos, formaldehyde, benzene) Magnesium fireproof board Main characteristic: 1.Fireproof-Grede A2.Moisture resistant3.Excellent impact resistant4.Excellent ... weight and easy to work Used place:Partition,Ceiling,firproof door... Size:Thickness:3mm-20mm4'*8',4'*9',3'*8',3 ...