... magnesium chloride ,fiber glass ,perlite ,wood fiber,it100% asbestos free,Fireproof Raw material:Magnesium oxide , magnesium chloride ,fiber glass ... 20mm2) 1200x2400,1220x24404) Edges: square / bevelled / tappedParameter:Density : 800-950kg/M2Moisture Content:<20%Water Asorption Capacity <60% ... to work, fix and decorateUsage:Magnesium oxide board have been used primarily as fireproof materials for ...