Magnesium oxide board for partition wall and fireproof door. Thickness: 3 to 18mm Size: 1220x2440mm, and others Specification: Thickness: 6.0 mm to 18.0mm Size: 1220X2440mm, Also follow buyer's demand.Feature: Fire resistant, water resistant, Moisture resistant, Impact tesistant, Excellent Sound insulation.Application: For interior partition wall, ceiling and door.