... anti-corrosion 3.good thermal insulated ca eps sandwich panel production lineEPS sandwich panel for roof, width:960mm or 980mmthickness:50,75 ... kgs/m3, steel sheet:0.2-0.6mmEPS sandwich panel for roofLength:unlimited,<12m due to transportColor:blue,white ... technolog Expanded Polystyrene Sandwich panel, also called composite panel, is a cost efficient prefabricated roofs element. Sandwich panels can be ...