Polyurethane foam sandwich panel is fit for the projects which have serious require of keeping warm. The product has every advantages of EPS,and then it is nonflammable ,easy to shrink and embirittle,so it is suitable for being cool storage room. Material1,thickness,up/down0.4~0.2mm Color-coated steel tile Electro galvanized plate/hot galvanized plate/stainless steel plate2,Core materials, ...