... ,Waterproof,Soundproof No asbestos used as ceiling board and wall partition construction material Mgo board Product Description:Magnesium Oxide Board (MGO ... .It also can be used as an interlayer for building, movable partitions, sound-absorbing structures, sound insulationWe are responsible for every ... .711formaldehyde emission (mg/L)------<0.1 construction material Mgo board partition wall