... sponge: High-density PU , molded by cold foaming2.Back & seat cover:Injection molded with multiple composite materials(PP),anti-impact, anti ... polishing anti-rusting, phosphing, spraying and powder coating.4.Armrest cover:Imported timber externally applied with polyester coating5.Fabric:Stain and ... furniture, School furniture, Airport furniture etc.Office Furniture: DF-03auditorium chair