... prefab house lightweight : Main Material: 1.The roof and wall is EPS sandwich panel. However, there are other ... building site, low cost, easy installation, reusable. 2.used in building site and can be reused in lots ... , office, control center, canteen and so on. 4.The low-cost, easy assemble and disassemble, reusable are the most ... : 320 square meters can be loaded in one 40 feet shipping container.