... used many times over.2. Applying,Nowadays, the EPS sandwich panel is widely used for cleaning workshops, industrial factory buildings, ... public buildings, etc.3.specification, Effective widthWall panel: 950mm 1150mm 1000mm 1200mm. Roof panel: 960mm 970mm.Lengthcustomized.MaterialsPolystyrene foam board(EPS), ... factory buildings, storages, exhibition halls, gymnasiums etc. LAR-W41 sandwich roof panel