... c) Waterproof structure d) OEM/ODM de container portable building Usage: The prefab home can be used as office, ... meeting room, dormitory, shop, exhibition center... In the fields of building, railway, highway, water conservancy project, electric power, business, tourism ... -tight, warm-keeping, water-proof and anti-corrosive. Features:Attractive design- -the whole house looks beautiful and elegant. The ...