Shield extruded foam insulation board (referred to as "extrusion plate") is mainly composed of polystyrene, add a few additives, and extruded through the heating system with a rigid closed-cell foam structure, Shield  Extrusion plate special Hangzhou Shield by the energy-saving insulation materials produced by nearly 100% closed-cell structure, high-performance extruded panels, with light, pressure, water-resistant, low thermal conductivity, dimensional stability and other characteristics of its