pre constructed house 1.low cost 2.easy to assemble and disassemble 3.green materials 4.heat,sound, insulation ISO pre engineered constructed steel house Material DetailsNo.Part Name MaterialSpecification1External WallEPS Sandwich Panel75mm thickness,0.3mm color steel,8kg/m32Interior WallEPS Sandwich Panel75mm thickness,0.3mm color steel,8kg/m33Roof EPS Sandwich Panel75mm thickness,0.3mm color ...