Performance: 1. Easy to construction and low-cost. 2. Small and exquisite, easy to disassemble movement. 3. Strength structure, sealing, insulation, water-proof, fire-resistant and good for moisture-proof. 4. To break the tradtional concept, our special design is convenient for the move and without any charge of disassemble; it will decrease the cost of construction so that the sandwich portable house is fit in the project site.