... assemble 2.durable 3.recyclable,green material 4.flexible new type villa,mobile villa, light steel structure villa light steel ... easy to assemble and disassemble, environment-protection.We import New Zealand technology,and use the Automatic steel structure produce machine ... Board;3.Roof Structure:Light Steel Keel,Asphalt Shingle (new type villa,mobile villa,light steel structure villa)Item name: ...