EPS sandwich roof panels 1, Excellent price and quality 2, Light weight 3, Easy ... steel structure workshop, easy building and air clean room as walls, ceilings.Specification Effective widthWall panel: 950mm 1150mm 1200mm Roof panel ... weight, heat insulation, water resistant, green and environmentalUsevarious roofs and walls referring to the large size factory buildings, storages, exhibition halls ...