1.Qualified material 2.Flexible design 3.Fast installation 4.Reuse for numerous times Prefab houseStructure: light steel or steel as main frame/structureInsulation material: sandwich panel (EPS, PU)Wall and roofs: sandwich panel, corrugated sandwich panel, asphalt tileWindows and doors: UPVC or aluminum window, sandwich panel doors/ UPVC door or steel security doors or wooden doorsUsing life: 15 ...