sandwich panel material:EPS, PU thickness:50,75,100mm ... usually used for walls and interior/exterior decoration of industrial and civil buildings, warehouse, special construction, ... structure housing. It has been widely used because of it's light weiht, high strength, rich color ... stand up to earthquake, fireand rain.materialssteelsandwichEPS(foam),PU(polyurethane),rock woolthickness 50mm,75mm,150mm or ...