... as its main frame, which is safe and reliable; sandwich panels as its roof and wall boards, which is in attractive ... corrugated steel boardWall Board50mm-200mm EPS (PU, MGO, RW)sandwich panelRoof Board50mm-200mm EPS (PU, MGO, RW)sandwich panelFloor Board15mm plywood ... , fire proofing, sound proofing. Professional material for fire.Polyurethane (PU) sandwich panelsUse for: roof and wall.Size for roof: L ...