Light texture, easy to use: the chemical structure is completely closed-cell foam XPS physical structure of honeycomb plate, it has the characteristics of lightweight, high strength, easy to cut, transport, xps extrusion board, and unbreakable, easy to install. Since the fixation of extruded polystyrene wall and base to use mechanical fasteners. As usual in the winter construction; 1> widely used in wall insulation, flat concrete roof and steel roof insulation; 2> moisture-proof insulation for low temperature storage of the ground areas, parking platforms, airport runways, highways and the like. Extruded polystyrene board is heated and mixed polymer resin supplemented while Yancheng xps extruded sheet, into the catalyst, xps extrusion mill, then press out the continuity of closed-cell foam extruded rigid foam board, which is independent of the internal bubble-enclosed structure, is a high compressive strength, low water absorption, moisture-proof, airtight, light weight, corrosion resistance, super anti-aging (long-term use almost no aging), low thermal conductivity excellent performance of environmentally friendly insulation material.